6664672 has 24 divisors (see below), whose sum is σ = 14996016. Its totient is φ = 2856192.

The previous prime is 6664667. The next prime is 6664711. The reversal of 6664672 is 2764666.

It is a congruent 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, 14653 + ... + 15100.

It is an arithmetic number, because the mean of its divisors is an integer number (624834).

Almost surely, 2^6664672 is an apocalyptic number.

It is an amenable number.

6664672 is an abundant number, since it is smaller than the sum of its proper divisors (8331344).

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

6664672 is a wasteful number, since it uses less digits than its factorization.

6664672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29770 (or 29762 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 6664672 is about 2581.6026030356. The cubic root of 6664672 is about 188.1884333719.

The spelling of 6664672 in words is "six million, six hundred sixty-four thousand, six hundred seventy-two".