680290900 has 18 divisors (see below), whose sum is σ = 1476231470. Its totient is φ = 272116320.

The previous prime is 680290879. The next prime is 680290931. The reversal of 680290900 is 9092086.

It can be written as a sum of positive squares in 3 ways, for example, as 2521744 + 677769156 = 1588^2 + 26034^2 .

It is a congruent number.

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, 3401355 + ... + 3401554.

Almost surely, 2^680290900 is an apocalyptic number.

It is an amenable number.

680290900 is an abundant number, since it is smaller than the sum of its proper divisors (795940570).

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

680290900 is a wasteful number, since it uses less digits than its factorization.

680290900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802923 (or 6802916 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 680290900 is about 26082.3867772871. The cubic root of 680290900 is about 879.4913124127.

The spelling of 680290900 in words is "six hundred eighty million, two hundred ninety thousand, nine hundred".