6668707 has 2 divisors, whose sum is σ = 6668708. Its totient is φ = 6668706.

The previous prime is 6668699. The next prime is 6668713. The reversal of 6668707 is 7078666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6668707 - 2³ = 6668699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6668707.

It is not a weakly prime, because it can be changed into another prime (6668737) 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, 3334353 + 3334354.

It is an arithmetic number, because the mean of its divisors is an integer number (3334354).

Almost surely, 2^6668707 is an apocalyptic number.

6668707 is a deficient number, since it is larger than the sum of its proper divisors (1).

6668707 is an equidigital number, since it uses as much as digits as its factorization.

6668707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 6668707 is about 2582.3839760965. The cubic root of 6668707 is about 188.2264040896.

The spelling of 6668707 in words is "six million, six hundred sixty-eight thousand, seven hundred seven".