6684907 has 2 divisors, whose sum is σ = 6684908. Its totient is φ = 6684906.

The previous prime is 6684869. The next prime is 6684911. The reversal of 6684907 is 7094866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6684907 - 2⁷ = 6684779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6684907.

It is not a weakly prime, because it can be changed into another prime (6684607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342453 + 3342454.

It is an arithmetic number, because the mean of its divisors is an integer number (3342454).

Almost surely, 2^6684907 is an apocalyptic number.

6684907 is a deficient number, since it is larger than the sum of its proper divisors (1).

6684907 is an equidigital number, since it uses as much as digits as its factorization.

6684907 is an evil number, because the sum of its binary digits is even.

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

The square root of 6684907 is about 2585.5187100464. The cubic root of 6684907 is about 188.3786975762.

The spelling of 6684907 in words is "six million, six hundred eighty-four thousand, nine hundred seven".