89518065 has 32 divisors (see below), whose sum is σ = 176284416. Its totient is φ = 37774080.

The previous prime is 89518043. The next prime is 89518067. The reversal of 89518065 is 56081598.

It is not a de Polignac number, because 89518065 - 2¹⁰ = 89517041 is a prime.

It is a super-2 number, since 2×89518065² = 16026967922688450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89518067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31426 + ... + 34155.

It is an arithmetic number, because the mean of its divisors is an integer number (5508888).

Almost surely, 2^89518065 is an apocalyptic number.

It is an amenable number.

89518065 is a deficient number, since it is larger than the sum of its proper divisors (86766351).

89518065 is a wasteful number, since it uses less digits than its factorization.

89518065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65609.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 89518065 is about 9461.3986809562. The cubic root of 89518065 is about 447.3391367549.

The spelling of 89518065 in words is "eighty-nine million, five hundred eighteen thousand, sixty-five".