99804972 has 24 divisors (see below), whose sum is σ = 233049600. Its totient is φ = 33243856.

The previous prime is 99804959. The next prime is 99804983. The reversal of 99804972 is 27940899.

It is a happy number.

It is a super-2 number, since 2×99804972² = 19922064871841568, which contains 22 as substring.

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, 22429 + ... + 26507.

It is an arithmetic number, because the mean of its divisors is an integer number (9710400).

Almost surely, 2^99804972 is an apocalyptic number.

It is an amenable number.

99804972 is an abundant number, since it is smaller than the sum of its proper divisors (133244628).

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

99804972 is a wasteful number, since it uses less digits than its factorization.

99804972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 99804972 is about 9990.2438408679. The cubic root of 99804972 is about 463.8569403893.

The spelling of 99804972 in words is "ninety-nine million, eight hundred four thousand, nine hundred seventy-two".