680682538 has 16 divisors (see below), whose sum is σ = 1036929600. Its totient is φ = 335053600.

The previous prime is 680682523. The next prime is 680682559. The reversal of 680682538 is 835286086.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 104913 + ... + 111211.

It is an arithmetic number, because the mean of its divisors is an integer number (64808100).

Almost surely, 2^680682538 is an apocalyptic number.

680682538 is a deficient number, since it is larger than the sum of its proper divisors (356247062).

680682538 is a wasteful number, since it uses less digits than its factorization.

680682538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 680682538 is about 26089.8934072181. The cubic root of 680682538 is about 879.6600520613.

The spelling of 680682538 in words is "six hundred eighty million, six hundred eighty-two thousand, five hundred thirty-eight".