89489 has 4 divisors (see below), whose sum is σ = 90420. Its totient is φ = 88560.

The previous prime is 89477. The next prime is 89491. The reversal of 89489 is 98498.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 46225 = 208^2 + 215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89489 is a prime.

It is a super-2 number, since 2×89489² = 16016562242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302 + ... + 519.

It is an arithmetic number, because the mean of its divisors is an integer number (22605).

2⁸⁹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

89489 is a deficient number, since it is larger than the sum of its proper divisors (931).

89489 is a wasteful number, since it uses less digits than its factorization.

89489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its digits is 20736, while the sum is 38.

The square root of 89489 is about 299.1471209957. The cubic root of 89489 is about 44.7290717033.

Subtracting 89489 from its reverse (98498), we obtain a palindrome (9009).

The spelling of 89489 in words is "eighty-nine thousand, four hundred eighty-nine".