72707896 has 16 divisors (see below), whose sum is σ = 140725440. Its totient is φ = 35181120.

The previous prime is 72707879. The next prime is 72707903. The reversal of 72707896 is 69870727.

It is an alternating number because its digits alternate between odd and even.

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, 146341 + ... + 146836.

It is an arithmetic number, because the mean of its divisors is an integer number (8795340).

Almost surely, 2^72707896 is an apocalyptic number.

It is an amenable number.

72707896 is a deficient number, since it is larger than the sum of its proper divisors (68017544).

72707896 is a wasteful number, since it uses less digits than its factorization.

72707896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293214 (or 293210 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 72707896 is about 8526.8925172070. The cubic root of 72707896 is about 417.3757307608.

The spelling of 72707896 in words is "seventy-two million, seven hundred seven thousand, eight hundred ninety-six".