72704092 has 12 divisors (see below), whose sum is σ = 127360800. Its totient is φ = 36315296.

The previous prime is 72704077. The next prime is 72704101. The reversal of 72704092 is 29040727.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4468 + ... + 12859.

It is an arithmetic number, because the mean of its divisors is an integer number (10613400).

Almost surely, 2^72704092 is an apocalyptic number.

It is an amenable number.

72704092 is a deficient number, since it is larger than the sum of its proper divisors (54656708).

72704092 is a wasteful number, since it uses less digits than its factorization.

72704092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18380 (or 18378 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 72704092 is about 8526.6694553032. The cubic root of 72704092 is about 417.3684517486.

The spelling of 72704092 in words is "seventy-two million, seven hundred four thousand, ninety-two".