72797488 has 20 divisors (see below), whose sum is σ = 141642720. Its totient is φ = 36244544.

The previous prime is 72797449. The next prime is 72797521. The reversal of 72797488 is 88479727.

It is a happy number.

It is a super-2 number, since 2×72797488² = 10598948518220288, which contains 22 as substring.

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, 5695 + ... + 13342.

It is an arithmetic number, because the mean of its divisors is an integer number (7082136).

Almost surely, 2^72797488 is an apocalyptic number.

It is an amenable number.

72797488 is a deficient number, since it is larger than the sum of its proper divisors (68845232).

72797488 is a wasteful number, since it uses less digits than its factorization.

72797488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19284 (or 19278 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The square root of 72797488 is about 8532.1443963402. The cubic root of 72797488 is about 417.5470930659.

The spelling of 72797488 in words is "seventy-two million, seven hundred ninety-seven thousand, four hundred eighty-eight".