6715691 has 2 divisors, whose sum is σ = 6715692. Its totient is φ = 6715690.

The previous prime is 6715679. The next prime is 6715699. The reversal of 6715691 is 1965176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6715691 - 2⁶ = 6715627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6715699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3357845 + 3357846.

It is an arithmetic number, because the mean of its divisors is an integer number (3357846).

Almost surely, 2^6715691 is an apocalyptic number.

6715691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6715691 is an equidigital number, since it uses as much as digits as its factorization.

6715691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 35.

The square root of 6715691 is about 2591.4650296695. The cubic root of 6715691 is about 188.6674161771.

The spelling of 6715691 in words is "six million, seven hundred fifteen thousand, six hundred ninety-one".