89866465 has 16 divisors (see below), whose sum is σ = 118971216. Its totient is φ = 64742400.

The previous prime is 89866457. The next prime is 89866487. The reversal of 89866465 is 56466898.

It can be written as a sum of positive squares in 8 ways, for example, as 52301824 + 37564641 = 7232^2 + 6129^2 .

It is not a de Polignac number, because 89866465 - 2³ = 89866457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14196 + ... + 19525.

It is an arithmetic number, because the mean of its divisors is an integer number (7435701).

Almost surely, 2^89866465 is an apocalyptic number.

It is an amenable number.

89866465 is a deficient number, since it is larger than the sum of its proper divisors (29104751).

89866465 is a wasteful number, since it uses less digits than its factorization.

89866465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33780.

The product of its digits is 2488320, while the sum is 52.

The square root of 89866465 is about 9479.7924555340. The cubic root of 89866465 is about 447.9187262882.

It can be divided in two parts, 8986 and 6465, that added together give a palindrome (15451).

The spelling of 89866465 in words is "eighty-nine million, eight hundred sixty-six thousand, four hundred sixty-five".