79687472 has 20 divisors (see below), whose sum is σ = 156927456. Its totient is φ = 39190080.

The previous prime is 79687459. The next prime is 79687481. The reversal of 79687472 is 27478697.

It is a self number, because there is not a number n which added to its sum of digits gives 79687472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39848 + ... + 41799.

Almost surely, 2^79687472 is an apocalyptic number.

It is an amenable number.

79687472 is a deficient number, since it is larger than the sum of its proper divisors (77239984).

79687472 is a wasteful number, since it uses less digits than its factorization.

79687472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81716 (or 81710 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 50.

The square root of 79687472 is about 8926.7839673647. The cubic root of 79687472 is about 430.3251047801.

The spelling of 79687472 in words is "seventy-nine million, six hundred eighty-seven thousand, four hundred seventy-two".