72797492 has 12 divisors (see below), whose sum is σ = 127782816. Its totient is φ = 36288120.

The previous prime is 72797449. The next prime is 72797521. The reversal of 72797492 is 29479727.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26168 + ... + 28815.

It is an arithmetic number, because the mean of its divisors is an integer number (10648568).

Almost surely, 2^72797492 is an apocalyptic number.

It is an amenable number.

72797492 is a deficient number, since it is larger than the sum of its proper divisors (54985324).

72797492 is a wasteful number, since it uses less digits than its factorization.

72797492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55318 (or 55316 counting only the distinct ones).

The product of its digits is 444528, while the sum is 47.

The square root of 72797492 is about 8532.1446307479. The cubic root of 72797492 is about 417.5471007135.

The spelling of 72797492 in words is "seventy-two million, seven hundred ninety-seven thousand, four hundred ninety-two".