679477772 has 24 divisors (see below), whose sum is σ = 1294834800. Its totient is φ = 310758336.

The previous prime is 679477759. The next prime is 679477823. The reversal of 679477772 is 277774976.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151943 + ... + 156350.

It is an arithmetic number, because the mean of its divisors is an integer number (53951450).

Almost surely, 2^679477772 is an apocalyptic number.

It is an amenable number.

679477772 is a deficient number, since it is larger than the sum of its proper divisors (615357028).

679477772 is a wasteful number, since it uses less digits than its factorization.

679477772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308345 (or 308343 counting only the distinct ones).

The product of its digits is 7260624, while the sum is 56.

The square root of 679477772 is about 26066.7944327645. The cubic root of 679477772 is about 879.1407642731.

The spelling of 679477772 in words is "six hundred seventy-nine million, four hundred seventy-seven thousand, seven hundred seventy-two".