30937872 has 40 divisors (see below), whose sum is σ = 91341376. Its totient is φ = 8839296.

The previous prime is 30937831. The next prime is 30937897. The reversal of 30937872 is 27873903.

It is a self number, because there is not a number n which added to its sum of digits gives 30937872.

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, 45703 + ... + 46374.

Almost surely, 2^30937872 is an apocalyptic number.

It is an amenable number.

30937872 is an abundant number, since it is smaller than the sum of its proper divisors (60403504).

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

30937872 is a wasteful number, since it uses less digits than its factorization.

30937872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92095 (or 92089 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 30937872 is about 5562.1823055344. The cubic root of 30937872 is about 313.9280671499.

The spelling of 30937872 in words is "thirty million, nine hundred thirty-seven thousand, eight hundred seventy-two".