72918756 has 36 divisors (see below), whose sum is σ = 185155152. Its totient is φ = 24196464.

The previous prime is 72918743. The next prime is 72918767. The reversal of 72918756 is 65781927.

It is a tau number, because it is divible by the number of its divisors (36).

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, 3711 + ... + 12633.

Almost surely, 2^72918756 is an apocalyptic number.

It is an amenable number.

72918756 is an abundant number, since it is smaller than the sum of its proper divisors (112236396).

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

72918756 is a wasteful number, since it uses less digits than its factorization.

72918756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160 (or 9155 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 72918756 is about 8539.2479762565. The cubic root of 72918756 is about 417.7788181425.

The spelling of 72918756 in words is "seventy-two million, nine hundred eighteen thousand, seven hundred fifty-six".