99726172 has 36 divisors (see below), whose sum is σ = 218636040. Its totient is φ = 39451104.

The previous prime is 99726161. The next prime is 99726197. The reversal of 99726172 is 27162799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17022 + ... + 22117.

Almost surely, 2^99726172 is an apocalyptic number.

It is an amenable number.

99726172 is an abundant number, since it is smaller than the sum of its proper divisors (118909868).

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

99726172 is a wasteful number, since it uses less digits than its factorization.

99726172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39170 (or 39161 counting only the distinct ones).

The product of its digits is 95256, while the sum is 43.

The square root of 99726172 is about 9986.2992144237. The cubic root of 99726172 is about 463.7348304045.

The spelling of 99726172 in words is "ninety-nine million, seven hundred twenty-six thousand, one hundred seventy-two".