6664711 has 2 divisors, whose sum is σ = 6664712. Its totient is φ = 6664710.

The previous prime is 6664667. The next prime is 6664717. The reversal of 6664711 is 1174666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6664711 - 2⁹ = 6664199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664717) 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, 3332355 + 3332356.

It is an arithmetic number, because the mean of its divisors is an integer number (3332356).

Almost surely, 2^6664711 is an apocalyptic number.

6664711 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664711 is an equidigital number, since it uses as much as digits as its factorization.

6664711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 6664711 is about 2581.6101564721. The cubic root of 6664711 is about 188.1888004484.

The spelling of 6664711 in words is "six million, six hundred sixty-four thousand, seven hundred eleven".