680790624 has 36 divisors (see below), whose sum is σ = 1787746716. Its totient is φ = 226844992.

The previous prime is 680790623. The next prime is 680790641. The reversal of 680790624 is 426097086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680790623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254317 + ... + 256979.

It is an arithmetic number, because the mean of its divisors is an integer number (49659631).

Almost surely, 2^680790624 is an apocalyptic number.

It is an amenable number.

680790624 is an abundant number, since it is smaller than the sum of its proper divisors (1106956092).

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

680790624 is an frugal number, since it uses more digits than its factorization.

680790624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 680790624 is about 26091.9647401264. The cubic root of 680790624 is about 879.7066101844.

The spelling of 680790624 in words is "six hundred eighty million, seven hundred ninety thousand, six hundred twenty-four".