680994384 has 40 divisors (see below), whose sum is σ = 2010555840. Its totient is φ = 194569728.

The previous prime is 680994323. The next prime is 680994451. The reversal of 680994384 is 483499086.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1013049 + ... + 1013720.

It is an arithmetic number, because the mean of its divisors is an integer number (50263896).

Almost surely, 2^680994384 is an apocalyptic number.

It is an amenable number.

680994384 is an abundant number, since it is smaller than the sum of its proper divisors (1329561456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680994384 is a wasteful number, since it uses less digits than its factorization.

680994384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026787 (or 2026781 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 680994384 is about 26095.8690983841. The cubic root of 680994384 is about 879.7943665530.

The spelling of 680994384 in words is "six hundred eighty million, nine hundred ninety-four thousand, three hundred eighty-four".