6664704 has 40 divisors (see below), whose sum is σ = 17759280. Its totient is φ = 2221056.

The previous prime is 6664667. The next prime is 6664711. The reversal of 6664704 is 4074666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (443982).

Almost surely, 2^6664704 is an apocalyptic number.

6664704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6664704 is an abundant number, since it is smaller than the sum of its proper divisors (11094576).

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

6664704 is an equidigital number, since it uses as much as digits as its factorization.

6664704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4344 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 6664704 is about 2581.6088007287. The cubic root of 6664704 is about 188.1887345630.

The spelling of 6664704 in words is "six million, six hundred sixty-four thousand, seven hundred four".