681352600 has 24 divisors (see below), whose sum is σ = 1584145260. Its totient is φ = 272540960.

The previous prime is 681352589. The next prime is 681352601. The reversal of 681352600 is 6253186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681352601) 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, 1703182 + ... + 1703581.

Almost surely, 2^681352600 is an apocalyptic number.

It is an amenable number.

681352600 is an abundant number, since it is smaller than the sum of its proper divisors (902792660).

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

681352600 is a wasteful number, since it uses less digits than its factorization.

681352600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3406779 (or 3406770 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 681352600 is about 26102.7316578170. The cubic root of 681352600 is about 879.9486023700.

The spelling of 681352600 in words is "six hundred eighty-one million, three hundred fifty-two thousand, six hundred".