6668716 has 6 divisors (see below), whose sum is σ = 11670260. Its totient is φ = 3334356.

The previous prime is 6668713. The next prime is 6668719. The reversal of 6668716 is 6178666.

It is an interprime number because it is at equal distance from previous prime (6668713) and next prime (6668719).

It is not an unprimeable number, because it can be changed into a prime (6668713) by changing a digit.

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 as a sum of consecutive naturals, namely, 833586 + ... + 833593.

Almost surely, 2^6668716 is an apocalyptic number.

It is an amenable number.

6668716 is a deficient number, since it is larger than the sum of its proper divisors (5001544).

6668716 is a wasteful number, since it uses less digits than its factorization.

6668716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667183 (or 1667181 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 6668716 is about 2582.3857186718. The cubic root of 6668716 is about 188.2264887655.

The spelling of 6668716 in words is "six million, six hundred sixty-eight thousand, seven hundred sixteen".