679684886 has 4 divisors (see below), whose sum is σ = 1019527332. Its totient is φ = 339842442.

The previous prime is 679684849. The next prime is 679684913. The reversal of 679684886 is 688486976.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169921220 + ... + 169921223.

It is an arithmetic number, because the mean of its divisors is an integer number (254881833).

Almost surely, 2^679684886 is an apocalyptic number.

679684886 is a deficient number, since it is larger than the sum of its proper divisors (339842446).

679684886 is a wasteful number, since it uses less digits than its factorization.

679684886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339842445.

The product of its digits is 27869184, while the sum is 62.

The square root of 679684886 is about 26070.7668855368. The cubic root of 679684886 is about 879.2300798575.

The spelling of 679684886 in words is "six hundred seventy-nine million, six hundred eighty-four thousand, eight hundred eighty-six".