680806600 has 24 divisors (see below), whose sum is σ = 1582875810. Its totient is φ = 272322560.

The previous prime is 680806583. The next prime is 680806663. The reversal of 680806600 is 6608086.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 360468196 + 320338404 = 18986^2 + 17898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1701817 + ... + 1702216.

Almost surely, 2^680806600 is an apocalyptic number.

It is an amenable number.

680806600 is an abundant number, since it is smaller than the sum of its proper divisors (902069210).

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

680806600 is a wasteful number, since it uses less digits than its factorization.

680806600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404049 (or 3404040 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 680806600 is about 26092.2708862222. The cubic root of 680806600 is about 879.7134914400.

The spelling of 680806600 in words is "six hundred eighty million, eight hundred six thousand, six hundred".