6664772 has 12 divisors (see below), whose sum is σ = 11748240. Its totient is φ = 3308136.

The previous prime is 6664771. The next prime is 6664787. The reversal of 6664772 is 2774666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6664771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5438 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (979020).

Almost surely, 2^6664772 is an apocalyptic number.

It is an amenable number.

6664772 is a deficient number, since it is larger than the sum of its proper divisors (5083468).

6664772 is a wasteful number, since it uses less digits than its factorization.

6664772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130 (or 12128 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 6664772 is about 2581.6219707773. The cubic root of 6664772 is about 188.1893745909.

The spelling of 6664772 in words is "six million, six hundred sixty-four thousand, seven hundred seventy-two".