6668976 has 20 divisors (see below), whose sum is σ = 17228312. Its totient is φ = 2222976.

The previous prime is 6668969. The next prime is 6669007. The reversal of 6668976 is 6798666.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 138937 = 6668976 / (6 + 6 + 6 + 8 + 9 + 7 + 6).

It is an Ulam number.

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, 69421 + ... + 69516.

Almost surely, 2^6668976 is an apocalyptic number.

It is an amenable number.

6668976 is an abundant number, since it is smaller than the sum of its proper divisors (10559336).

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

6668976 is a wasteful number, since it uses less digits than its factorization.

6668976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138948 (or 138942 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 6668976 is about 2582.4360592278. The cubic root of 6668976 is about 188.2289349261.

The spelling of 6668976 in words is "six million, six hundred sixty-eight thousand, nine hundred seventy-six".