680439700 has 18 divisors (see below), whose sum is σ = 1476554366. Its totient is φ = 272175840.

The previous prime is 680439619. The next prime is 680439701. The reversal of 680439700 is 7934086.

680439700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2566404 + 677873296 = 1602^2 + 26036^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680439700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680439701) 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, 3402099 + ... + 3402298.

Almost surely, 2^680439700 is an apocalyptic number.

It is an amenable number.

680439700 is an abundant number, since it is smaller than the sum of its proper divisors (796114666).

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

680439700 is a wasteful number, since it uses less digits than its factorization.

680439700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804411 (or 6804404 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 680439700 is about 26085.2391210048. The cubic root of 680439700 is about 879.5554314373. Note that the first 3 decimals are identical.

The spelling of 680439700 in words is "six hundred eighty million, four hundred thirty-nine thousand, seven hundred".