78907372 has 12 divisors (see below), whose sum is σ = 138639816. Its totient is φ = 39296000.

The previous prime is 78907357. The next prime is 78907391. The reversal of 78907372 is 27370987.

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, 38293 + ... + 40300.

It is an arithmetic number, because the mean of its divisors is an integer number (11553318).

Almost surely, 2^78907372 is an apocalyptic number.

It is an amenable number.

78907372 is a deficient number, since it is larger than the sum of its proper divisors (59732444).

78907372 is a wasteful number, since it uses less digits than its factorization.

78907372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78848 (or 78846 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 78907372 is about 8882.9821569110. The cubic root of 78907372 is about 428.9162758644.

The spelling of 78907372 in words is "seventy-eight million, nine hundred seven thousand, three hundred seventy-two".