90564972 has 24 divisors (see below), whose sum is σ = 214474176. Its totient is φ = 29737488.

The previous prime is 90564959. The next prime is 90564989. The reversal of 90564972 is 27946509.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55518 + ... + 57125.

It is an arithmetic number, because the mean of its divisors is an integer number (8936424).

Almost surely, 2^90564972 is an apocalyptic number.

It is an amenable number.

90564972 is an abundant number, since it is smaller than the sum of its proper divisors (123909204).

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

90564972 is a wasteful number, since it uses less digits than its factorization.

90564972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112717 (or 112715 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 90564972 is about 9516.5630350458. The cubic root of 90564972 is about 449.0762482467.

It can be divided in two parts, 9056 and 4972, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 90564972 in words is "ninety million, five hundred sixty-four thousand, nine hundred seventy-two".