68894660 has 24 divisors (see below), whose sum is σ = 150970176. Its totient is φ = 26359520.

The previous prime is 68894641. The next prime is 68894687. The reversal of 68894660 is 6649886.

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, 74426 + ... + 75345.

It is an arithmetic number, because the mean of its divisors is an integer number (6290424).

Almost surely, 2^68894660 is an apocalyptic number.

It is an amenable number.

68894660 is an abundant number, since it is smaller than the sum of its proper divisors (82075516).

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

68894660 is a wasteful number, since it uses less digits than its factorization.

68894660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149803 (or 149801 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 68894660 is about 8300.2807181444. The cubic root of 68894660 is about 409.9477625298.

The spelling of 68894660 in words is "sixty-eight million, eight hundred ninety-four thousand, six hundred sixty".