68930664 has 32 divisors (see below), whose sum is σ = 187993440. Its totient is φ = 20888000.

The previous prime is 68930657. The next prime is 68930683. The reversal of 68930664 is 46603986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130287 + ... + 130814.

It is an arithmetic number, because the mean of its divisors is an integer number (5874795).

Almost surely, 2^68930664 is an apocalyptic number.

It is an amenable number.

68930664 is an abundant number, since it is smaller than the sum of its proper divisors (119062776).

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

68930664 is a wasteful number, since it uses less digits than its factorization.

68930664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261121 (or 261117 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 68930664 is about 8302.4492771712. The cubic root of 68930664 is about 410.0191623009.

The spelling of 68930664 in words is "sixty-eight million, nine hundred thirty thousand, six hundred sixty-four".