68309900 has 36 divisors (see below), whose sum is σ = 148745688. Its totient is φ = 27229440.

The previous prime is 68309897. The next prime is 68309911. The reversal of 68309900 is 990386.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32687 + ... + 34713.

Almost surely, 2^68309900 is an apocalyptic number.

It is an amenable number.

68309900 is an abundant number, since it is smaller than the sum of its proper divisors (80435788).

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

68309900 is a wasteful number, since it uses less digits than its factorization.

68309900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2371 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 68309900 is about 8264.9803387546. The cubic root of 68309900 is about 408.7846220677.

The spelling of 68309900 in words is "sixty-eight million, three hundred nine thousand, nine hundred".