679432172 has 24 divisors (see below), whose sum is σ = 1252445040. Its totient is φ = 321615360.

The previous prime is 679432129. The next prime is 679432199. The reversal of 679432172 is 271234976.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178772 + ... + 182532.

It is an arithmetic number, because the mean of its divisors is an integer number (52185210).

Almost surely, 2^679432172 is an apocalyptic number.

It is an amenable number.

679432172 is a deficient number, since it is larger than the sum of its proper divisors (573012868).

679432172 is a wasteful number, since it uses less digits than its factorization.

679432172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161 (or 6159 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 679432172 is about 26065.9197420693. The cubic root of 679432172 is about 879.1210973478.

The spelling of 679432172 in words is "six hundred seventy-nine million, four hundred thirty-two thousand, one hundred seventy-two".