679984172 has 36 divisors (see below), whose sum is σ = 1386173880. Its totient is φ = 291017664.

The previous prime is 679984169. The next prime is 679984211. The reversal of 679984172 is 271489976.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171104 + ... + 175032.

It is an arithmetic number, because the mean of its divisors is an integer number (38504830).

Almost surely, 2^679984172 is an apocalyptic number.

It is an amenable number.

679984172 is an abundant number, since it is smaller than the sum of its proper divisors (706189708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679984172 is a wasteful number, since it uses less digits than its factorization.

679984172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830 (or 4821 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 679984172 is about 26076.5061309985. The cubic root of 679984172 is about 879.3591115336.

The spelling of 679984172 in words is "six hundred seventy-nine million, nine hundred eighty-four thousand, one hundred seventy-two".