680493976 has 16 divisors (see below), whose sum is σ = 1287633600. Its totient is φ = 337125024.

The previous prime is 680493959. The next prime is 680494007. The reversal of 680493976 is 679394086.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 389320 + ... + 391063.

It is an arithmetic number, because the mean of its divisors is an integer number (80477100).

Almost surely, 2^680493976 is an apocalyptic number.

It is an amenable number.

680493976 is a deficient number, since it is larger than the sum of its proper divisors (607139624).

680493976 is a wasteful number, since it uses less digits than its factorization.

680493976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780498 (or 780494 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 680493976 is about 26086.2794587500. The cubic root of 680493976 is about 879.5788170419.

The spelling of 680493976 in words is "six hundred eighty million, four hundred ninety-three thousand, nine hundred seventy-six".