679576631 has 2 divisors, whose sum is σ = 679576632. Its totient is φ = 679576630.

The previous prime is 679576577. The next prime is 679576643. The reversal of 679576631 is 136675976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679576631 - 2⁶ = 679576567 is a prime.

It is a super-2 number, since 2×679576631² = 923648794802620322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679576631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679576231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339788315 + 339788316.

It is an arithmetic number, because the mean of its divisors is an integer number (339788316).

Almost surely, 2^679576631 is an apocalyptic number.

679576631 is a deficient number, since it is larger than the sum of its proper divisors (1).

679576631 is an equidigital number, since it uses as much as digits as its factorization.

679576631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 50.

The square root of 679576631 is about 26068.6906268804. The cubic root of 679576631 is about 879.1833983693.

The spelling of 679576631 in words is "six hundred seventy-nine million, five hundred seventy-six thousand, six hundred thirty-one".