679470831 has 24 divisors (see below), whose sum is σ = 1060741136. Its totient is φ = 416638080.

The previous prime is 679470823. The next prime is 679470833. The reversal of 679470831 is 138074976.

It is not a de Polignac number, because 679470831 - 2³ = 679470823 is a prime.

It is a super-2 number, since 2×679470831² = 923361220359661122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679470833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22851 + ... + 43371.

Almost surely, 2^679470831 is an apocalyptic number.

679470831 is a deficient number, since it is larger than the sum of its proper divisors (381270305).

679470831 is a wasteful number, since it uses less digits than its factorization.

679470831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20823 (or 20820 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 679470831 is about 26066.6612936908. The cubic root of 679470831 is about 879.1377707306.

The spelling of 679470831 in words is "six hundred seventy-nine million, four hundred seventy thousand, eight hundred thirty-one".