6668764 has 24 divisors (see below), whose sum is σ = 12006176. Its totient is φ = 3240000.

The previous prime is 6668759. The next prime is 6668789. The reversal of 6668764 is 4678666.

It is a self number, because there is not a number n which added to its sum of digits gives 6668764.

It is a congruent number.

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, 36754 + ... + 36934.

Almost surely, 2^6668764 is an apocalyptic number.

It is an amenable number.

6668764 is a deficient number, since it is larger than the sum of its proper divisors (5337412).

6668764 is a wasteful number, since it uses less digits than its factorization.

6668764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 6668764 is about 2582.3950123868. The cubic root of 6668764 is about 188.2269403692.

The spelling of 6668764 in words is "six million, six hundred sixty-eight thousand, seven hundred sixty-four".