680394616 has 24 divisors (see below), whose sum is σ = 1402261560. Its totient is φ = 309269840.

The previous prime is 680394613. The next prime is 680394629. The reversal of 680394616 is 616493086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680394613) 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, 350476 + ... + 352411.

It is an arithmetic number, because the mean of its divisors is an integer number (58427565).

Almost surely, 2^680394616 is an apocalyptic number.

It is an amenable number.

680394616 is an abundant number, since it is smaller than the sum of its proper divisors (721866944).

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

680394616 is a wasteful number, since it uses less digits than its factorization.

680394616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702915 (or 702900 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 680394616 is about 26084.3749397987. The cubic root of 680394616 is about 879.5360053941.

The spelling of 680394616 in words is "six hundred eighty million, three hundred ninety-four thousand, six hundred sixteen".