87913265 has 32 divisors (see below), whose sum is σ = 119439360. Its totient is φ = 61566400.

The previous prime is 87913207. The next prime is 87913271. The reversal of 87913265 is 56231978.

It is not a de Polignac number, because 87913265 - 2¹⁴ = 87896881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183296 + ... + 183774.

It is an arithmetic number, because the mean of its divisors is an integer number (3732480).

Almost surely, 2^87913265 is an apocalyptic number.

It is an amenable number.

87913265 is a deficient number, since it is larger than the sum of its proper divisors (31526095).

87913265 is a wasteful number, since it uses less digits than its factorization.

87913265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613.

The product of its digits is 90720, while the sum is 41.

The square root of 87913265 is about 9376.2073889180. The cubic root of 87913265 is about 444.6498360513.

The spelling of 87913265 in words is "eighty-seven million, nine hundred thirteen thousand, two hundred sixty-five".