289 is the natural number following 288 and preceding 290.
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- 289 is an odd composite number with only one prime factor.[1]
- 289 is the 9th Friedman number. Friedman numbers are numbers that can be written by using its own digits the exact number of times they show up in the number. This one can be expressed as (8+9)².[2]
- 289 is a perfect square being equal to 17². It is also the 7th number to only have 3 factors because it is a square of a prime number.
- 289 is the sum of perfect cubes. It is the sum of 1³+2³+4³+6³.
- 289 is equivalent to the sum of the first 5 whole numbers to their respective powers. It is equal to 0⁰+1¹+2²+3³+4⁴.
- The area code 289 is shared with 905 in the area in southern Ontario surrounding the greater Toronto metropolitan area.[3]
- The Fluke 289 True-RMS Industrial Logging Digital Multimeter with Trendcapture is a tool designed to find signal in certain areas. It has a graphic visualization of this information that it displays on its screen. It can store up to 15,000 data points.[4]
- The 289 series is a style of train that is operated by the West Japan Railway Company. It uses a DC EMU as opposed to the dual-voltage 683 series that preceded it.[5]
- On February 2, 2021, Ariel Chahi grew a strawberry that weighed 289 g in Israel. This was confirmed to be the world's heaviest strawberry.[6]
- On December 2, 2022, the longest flight by a paper aircraft was achieved by Dillon Ruble, Nathaniel Erickson, and Garret Jensen at a distance of 289 ft.[7]
- On March 21, 2017, e.motion21 Inc received the Guinness World Record for 289 people drumming on Swiss Balls simultaneously.[8]
- In the 2001-2002 horse racing season, Tom McCoy received the world record for achieving 289 steeplechase wins.[9]
- In the US Masters golf tournament, the highest ever winning score for the event is 289. This has happened three times, by golfers Sam Snead, Jack Burke Jr., and Zach Johnson, who won the competitions in 1954, 1956, and 2007 respectively.[10]