679823908 has 6 divisors (see below), whose sum is σ = 1189691846. Its totient is φ = 339911952.

The previous prime is 679823899. The next prime is 679823909. The reversal of 679823908 is 809328976.

It can be written as a sum of positive squares in only one way, i.e., 674025444 + 5798464 = 25962^2 + 2408^2 .

It is not an unprimeable number, because it can be changed into a prime (679823909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84977985 + ... + 84977992.

Almost surely, 2^679823908 is an apocalyptic number.

It is an amenable number.

679823908 is a deficient number, since it is larger than the sum of its proper divisors (509867938).

679823908 is a wasteful number, since it uses less digits than its factorization.

679823908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169955981 (or 169955979 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 679823908 is about 26073.4329922241. The cubic root of 679823908 is about 879.2900213559.

The spelling of 679823908 in words is "six hundred seventy-nine million, eight hundred twenty-three thousand, nine hundred eight".