6628711 has 2 divisors, whose sum is σ = 6628712. Its totient is φ = 6628710.

The previous prime is 6628679. The next prime is 6628717. The reversal of 6628711 is 1178266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6628711 - 2⁵ = 6628679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6628717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314355 + 3314356.

It is an arithmetic number, because the mean of its divisors is an integer number (3314356).

Almost surely, 2^6628711 is an apocalyptic number.

6628711 is a deficient number, since it is larger than the sum of its proper divisors (1).

6628711 is an equidigital number, since it uses as much as digits as its factorization.

6628711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 6628711 is about 2574.6283226905. The cubic root of 6628711 is about 187.8493492821.

The spelling of 6628711 in words is "six million, six hundred twenty-eight thousand, seven hundred eleven".