68009964 has 24 divisors (see below), whose sum is σ = 173116608. Its totient is φ = 20609040.

The previous prime is 68009941. The next prime is 68009983. The reversal of 68009964 is 46990086.

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, 257482 + ... + 257745.

It is an arithmetic number, because the mean of its divisors is an integer number (7213192).

Almost surely, 2^68009964 is an apocalyptic number.

It is an amenable number.

68009964 is an abundant number, since it is smaller than the sum of its proper divisors (105106644).

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

68009964 is a wasteful number, since it uses less digits than its factorization.

68009964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515245 (or 515243 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 68009964 is about 8246.8153853472. The cubic root of 68009964 is about 408.1854453021.

The spelling of 68009964 in words is "sixty-eight million, nine thousand, nine hundred sixty-four".