89915 has 12 divisors (see below), whose sum is σ = 125856. Its totient is φ = 61488.

The previous prime is 89909. The next prime is 89917. The reversal of 89915 is 51998.

It is not a de Polignac number, because 89915 - 2⁴ = 89899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62 + ... + 428.

It is an arithmetic number, because the mean of its divisors is an integer number (10488).

2⁸⁹⁹¹⁵ is an apocalyptic number.

89915 is the 245-th pentagonal number.

89915 is a deficient number, since it is larger than the sum of its proper divisors (35941).

89915 is a wasteful number, since it uses less digits than its factorization.

89915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 379 counting only the distinct ones).

The product of its digits is 3240, while the sum is 32.

The square root of 89915 is about 299.8582998685. The cubic root of 89915 is about 44.7999348957.

The spelling of 89915 in words is "eighty-nine thousand, nine hundred fifteen".