68902664 has 32 divisors (see below), whose sum is σ = 141912000. Its totient is φ = 31217472.

The previous prime is 68902663. The next prime is 68902679. The reversal of 68902664 is 46620986.

It is not an unprimeable number, because it can be changed into a prime (68902661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6359 + ... + 13350.

It is an arithmetic number, because the mean of its divisors is an integer number (4434750).

Almost surely, 2^68902664 is an apocalyptic number.

It is an amenable number.

68902664 is an abundant number, since it is smaller than the sum of its proper divisors (73009336).

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

68902664 is a wasteful number, since it uses less digits than its factorization.

68902664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19757 (or 19753 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 68902664 is about 8300.7628565090. The cubic root of 68902664 is about 409.9636374652.

The spelling of 68902664 in words is "sixty-eight million, nine hundred two thousand, six hundred sixty-four".