99051972 has 24 divisors (see below), whose sum is σ = 231285600. Its totient is φ = 32993856.

The previous prime is 99051949. The next prime is 99051991. The reversal of 99051972 is 27915099.

It is a super-2 number, since 2×99051972² = 19622586314177568, 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, 26304 + ... + 29832.

It is an arithmetic number, because the mean of its divisors is an integer number (9636900).

Almost surely, 2^99051972 is an apocalyptic number.

It is an amenable number.

99051972 is an abundant number, since it is smaller than the sum of its proper divisors (132233628).

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

99051972 is a wasteful number, since it uses less digits than its factorization.

99051972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5873 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 99051972 is about 9952.4857196582. The cubic root of 99051972 is about 462.6874382216.

The spelling of 99051972 in words is "ninety-nine million, fifty-one thousand, nine hundred seventy-two".