681308700 has 72 divisors (see below), whose sum is σ = 2034869760. Its totient is φ = 175819200.

The previous prime is 681308671. The next prime is 681308717. The reversal of 681308700 is 7803186.

681308700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27330 + ... + 45929.

It is an arithmetic number, because the mean of its divisors is an integer number (28262080).

Almost surely, 2^681308700 is an apocalyptic number.

681308700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681308700 is an abundant number, since it is smaller than the sum of its proper divisors (1353561060).

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

681308700 is a wasteful number, since it uses less digits than its factorization.

681308700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73307 (or 73300 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 681308700 is about 26101.8907361134. The cubic root of 681308700 is about 879.9297034067.

The spelling of 681308700 in words is "six hundred eighty-one million, three hundred eight thousand, seven hundred".