680397516 has 24 divisors (see below), whose sum is σ = 1763993840. Its totient is φ = 226799136.

The previous prime is 680397481. The next prime is 680397527. The reversal of 680397516 is 615793086.

It is a happy 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, 3149881 + ... + 3150096.

Almost surely, 2^680397516 is an apocalyptic number.

It is an amenable number.

680397516 is an abundant number, since it is smaller than the sum of its proper divisors (1083596324).

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

680397516 is a wasteful number, since it uses less digits than its factorization.

680397516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299990 (or 6299982 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 680397516 is about 26084.4305285739. The cubic root of 680397516 is about 879.5372549880.

The spelling of 680397516 in words is "six hundred eighty million, three hundred ninety-seven thousand, five hundred sixteen".