90172264 has 32 divisors (see below), whose sum is σ = 208091520. Its totient is φ = 35672256.

The previous prime is 90172253. The next prime is 90172289. The reversal of 90172264 is 46227109.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61204 + ... + 62659.

It is an arithmetic number, because the mean of its divisors is an integer number (6502860).

Almost surely, 2^90172264 is an apocalyptic number.

It is an amenable number.

90172264 is an abundant number, since it is smaller than the sum of its proper divisors (117919256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90172264 is a wasteful number, since it uses less digits than its factorization.

90172264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123889 (or 123885 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 90172264 is about 9495.9077501838. The cubic root of 90172264 is about 448.4262126900.

The spelling of 90172264 in words is "ninety million, one hundred seventy-two thousand, two hundred sixty-four".