680031279 has 12 divisors (see below), whose sum is σ = 990003456. Its totient is φ = 449783712.

The previous prime is 680031217. The next prime is 680031293. The reversal of 680031279 is 972130086.

It is not a de Polignac number, because 680031279 - 2⁷ = 680031151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680031379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296334 + ... + 298619.

It is an arithmetic number, because the mean of its divisors is an integer number (82500288).

Almost surely, 2^680031279 is an apocalyptic number.

680031279 is a deficient number, since it is larger than the sum of its proper divisors (309972177).

680031279 is a wasteful number, since it uses less digits than its factorization.

680031279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595086 (or 595083 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 680031279 is about 26077.4093613610. The cubic root of 680031279 is about 879.3794174048.

The spelling of 680031279 in words is "six hundred eighty million, thirty-one thousand, two hundred seventy-nine".