680552900 has 18 divisors (see below), whose sum is σ = 1476800010. Its totient is φ = 272221120.

The previous prime is 680552897. The next prime is 680552981. The reversal of 680552900 is 9255086.

It can be written as a sum of positive squares in 3 ways, for example, as 52649536 + 627903364 = 7256^2 + 25058^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3402665 + ... + 3402864.

It is an arithmetic number, because the mean of its divisors is an integer number (82044445).

Almost surely, 2^680552900 is an apocalyptic number.

It is an amenable number.

680552900 is an abundant number, since it is smaller than the sum of its proper divisors (796247110).

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

680552900 is a wasteful number, since it uses less digits than its factorization.

680552900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805543 (or 6805536 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 680552900 is about 26087.4088402816. The cubic root of 680552900 is about 879.6042038972.

The spelling of 680552900 in words is "six hundred eighty million, five hundred fifty-two thousand, nine hundred".