99572732 has 12 divisors (see below), whose sum is σ = 199145520. Its totient is φ = 42674016.

The previous prime is 99572729. The next prime is 99572741. The reversal of 99572732 is 23727599.

It is a happy number.

99572732 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778057 + ... + 1778112.

It is an arithmetic number, because the mean of its divisors is an integer number (16595460).

Almost surely, 2^99572732 is an apocalyptic number.

It is an amenable number.

99572732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99572732 is a wasteful number, since it uses less digits than its factorization.

99572732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556180 (or 3556178 counting only the distinct ones).

The product of its digits is 238140, while the sum is 44.

The square root of 99572732 is about 9978.6137313757. The cubic root of 99572732 is about 463.4968721509.

The spelling of 99572732 in words is "ninety-nine million, five hundred seventy-two thousand, seven hundred thirty-two".