679927866 has 32 divisors (see below), whose sum is σ = 1378944000. Its totient is φ = 223472304.

The previous prime is 679927861. The next prime is 679927891. The reversal of 679927866 is 668729976.

It is not an unprimeable number, because it can be changed into a prime (679927861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339135 + ... + 341133.

It is an arithmetic number, because the mean of its divisors is an integer number (43092000).

Almost surely, 2^679927866 is an apocalyptic number.

679927866 is an abundant number, since it is smaller than the sum of its proper divisors (699016134).

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

679927866 is a wasteful number, since it uses less digits than its factorization.

679927866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its digits is 13716864, while the sum is 60.

The square root of 679927866 is about 26075.4264778162. The cubic root of 679927866 is about 879.3348391251.

The spelling of 679927866 in words is "six hundred seventy-nine million, nine hundred twenty-seven thousand, eight hundred sixty-six".