72791408 has 20 divisors (see below), whose sum is σ = 141261048. Its totient is φ = 36336960.

The previous prime is 72791387. The next prime is 72791423. The reversal of 72791408 is 80419727.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 7598 + ... + 14258.

Almost surely, 2^72791408 is an apocalyptic number.

It is an amenable number.

72791408 is a deficient number, since it is larger than the sum of its proper divisors (68469640).

72791408 is a wasteful number, since it uses less digits than its factorization.

72791408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352 (or 7346 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 72791408 is about 8531.7880892577. The cubic root of 72791408 is about 417.5354683195.

The spelling of 72791408 in words is "seventy-two million, seven hundred ninety-one thousand, four hundred eight".