6664868 has 12 divisors (see below), whose sum is σ = 13329792. Its totient is φ = 2856360.

The previous prime is 6664859. The next prime is 6664873. The reversal of 6664868 is 8684666.

6664868 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118988 + ... + 119043.

It is an arithmetic number, because the mean of its divisors is an integer number (1110816).

Almost surely, 2^6664868 is an apocalyptic number.

It is an amenable number.

6664868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6664868 is a wasteful number, since it uses less digits than its factorization.

6664868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238042 (or 238040 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 6664868 is about 2581.6405636726. The cubic root of 6664868 is about 188.1902781524.

The spelling of 6664868 in words is "six million, six hundred sixty-four thousand, eight hundred sixty-eight".