78736904 has 16 divisors (see below), whose sum is σ = 148117200. Its totient is φ = 39238992.

The previous prime is 78736883. The next prime is 78736927. The reversal of 78736904 is 40963787.

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, 13574 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (9257325).

Almost surely, 2^78736904 is an apocalyptic number.

It is an amenable number.

78736904 is a deficient number, since it is larger than the sum of its proper divisors (69380296).

78736904 is a wasteful number, since it uses less digits than its factorization.

78736904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32372 (or 32368 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 78736904 is about 8873.3817679620. The cubic root of 78736904 is about 428.6071825832.

The spelling of 78736904 in words is "seventy-eight million, seven hundred thirty-six thousand, nine hundred four".