Homonym: 89 (Prime)
The number "89" is an integer that follows 88 and precedes 90. It is an odd number and can be expressed as the sum of two prime numbers: 43 and 46. In Roman numerals, it is represented as LXXXIX.
In mathematics, 89 is notable for being a Fibonacci number, which means it is part of a sequence where each number is the sum of the two preceding ones. The Fibonacci sequence starts with 0 and 1, and 89 is the 11th number in this series. Additionally, 89 is the square of 9.