64858668 has 24 divisors (see below), whose sum is σ = 172956672. Its totient is φ = 18531024.

The previous prime is 64858639. The next prime is 64858691. The reversal of 64858668 is 86685846.

It is a self number, because there is not a number n which added to its sum of digits gives 64858668.

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, 385980 + ... + 386147.

It is an arithmetic number, because the mean of its divisors is an integer number (7206528).

Almost surely, 2^64858668 is an apocalyptic number.

It is an amenable number.

64858668 is an abundant number, since it is smaller than the sum of its proper divisors (108098004).

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

64858668 is a wasteful number, since it uses less digits than its factorization.

64858668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772141 (or 772139 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 64858668 is about 8053.4879400170. The cubic root of 64858668 is about 401.7809504372.

The spelling of 64858668 in words is "sixty-four million, eight hundred fifty-eight thousand, six hundred sixty-eight".