72937880 has 16 divisors (see below), whose sum is σ = 164110320. Its totient is φ = 29175136.

The previous prime is 72937867. The next prime is 72937901. The reversal of 72937880 is 8873927.

It is a happy number.

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, 911684 + ... + 911763.

It is an arithmetic number, because the mean of its divisors is an integer number (10256895).

Almost surely, 2^72937880 is an apocalyptic number.

It is an amenable number.

72937880 is an abundant number, since it is smaller than the sum of its proper divisors (91172440).

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

72937880 is a wasteful number, since it uses less digits than its factorization.

72937880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823458 (or 1823454 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 72937880 is about 8540.3676735841. The cubic root of 72937880 is about 417.8153377989.

The spelling of 72937880 in words is "seventy-two million, nine hundred thirty-seven thousand, eight hundred eighty".