72797956 has 36 divisors (see below), whose sum is σ = 160042624. Its totient is φ = 28361520.

The previous prime is 72797909. The next prime is 72797957. The reversal of 72797956 is 65979727.

It is not an unprimeable number, because it can be changed into a prime (72797957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7356 + ... + 14131.

Almost surely, 2^72797956 is an apocalyptic number.

It is an amenable number.

72797956 is an abundant number, since it is smaller than the sum of its proper divisors (87244668).

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

72797956 is a wasteful number, since it uses less digits than its factorization.

72797956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21520 (or 21507 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 52.

The square root of 72797956 is about 8532.1718219923. The cubic root of 72797956 is about 417.5479878386.

The spelling of 72797956 in words is "seventy-two million, seven hundred ninety-seven thousand, nine hundred fifty-six".