680870079 has 12 divisors (see below), whose sum is σ = 985107136. Its totient is φ = 453161952.

The previous prime is 680870039. The next prime is 680870083. The reversal of 680870079 is 970078086.

It is not a de Polignac number, because 680870079 - 2²⁸ = 412434623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680870039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56854 + ... + 67779.

Almost surely, 2^680870079 is an apocalyptic number.

680870079 is a deficient number, since it is larger than the sum of its proper divisors (304237057).

680870079 is a wasteful number, since it uses less digits than its factorization.

680870079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125246 (or 125243 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 680870079 is about 26093.4872908931. The cubic root of 680870079 is about 879.7408323408.

The spelling of 680870079 in words is "six hundred eighty million, eight hundred seventy thousand, seventy-nine".