72797396 has 12 divisors (see below), whose sum is σ = 145594848. Its totient is φ = 31198872.

The previous prime is 72797381. The next prime is 72797399. The reversal of 72797396 is 69379727.

72797396 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72797399) by changing a digit.

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, 1299926 + ... + 1299981.

It is an arithmetic number, because the mean of its divisors is an integer number (12132904).

Almost surely, 2^72797396 is an apocalyptic number.

It is an amenable number.

72797396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72797396 is a wasteful number, since it uses less digits than its factorization.

72797396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599918 (or 2599916 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 50.

The square root of 72797396 is about 8532.1390049624. The cubic root of 72797396 is about 417.5469171700.

The spelling of 72797396 in words is "seventy-two million, seven hundred ninety-seven thousand, three hundred ninety-six".