680738808 has 32 divisors (see below), whose sum is σ = 1760533200. Its totient is φ = 219088128.

The previous prime is 680738789. The next prime is 680738831. The reversal of 680738808 is 808837086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488341 + ... + 489732.

Almost surely, 2^680738808 is an apocalyptic number.

It is an amenable number.

680738808 is an abundant number, since it is smaller than the sum of its proper divisors (1079794392).

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

680738808 is a wasteful number, since it uses less digits than its factorization.

680738808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978111 (or 978107 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 680738808 is about 26090.9717718601. The cubic root of 680738808 is about 879.6842910197.

The spelling of 680738808 in words is "six hundred eighty million, seven hundred thirty-eight thousand, eight hundred eight".