6904691 has 2 divisors, whose sum is σ = 6904692. Its totient is φ = 6904690.

The previous prime is 6904649. The next prime is 6904693. The reversal of 6904691 is 1964096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6904691 - 2⁶ = 6904627 is a prime.

Together with 6904693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6904693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3452345 + 3452346.

It is an arithmetic number, because the mean of its divisors is an integer number (3452346).

Almost surely, 2^6904691 is an apocalyptic number.

6904691 is a deficient number, since it is larger than the sum of its proper divisors (1).

6904691 is an equidigital number, since it uses as much as digits as its factorization.

6904691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 6904691 is about 2627.6778721906. The cubic root of 6904691 is about 190.4209595333.

The spelling of 6904691 in words is "six million, nine hundred four thousand, six hundred ninety-one".