6694871 has 2 divisors, whose sum is σ = 6694872. Its totient is φ = 6694870.

The previous prime is 6694861. The next prime is 6694879. The reversal of 6694871 is 1784966.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6694871 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6694879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347435 + 3347436.

It is an arithmetic number, because the mean of its divisors is an integer number (3347436).

Almost surely, 2^6694871 is an apocalyptic number.

6694871 is a deficient number, since it is larger than the sum of its proper divisors (1).

6694871 is an equidigital number, since it uses as much as digits as its factorization.

6694871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 6694871 is about 2587.4448786399. Note that the first 3 decimals coincide. The cubic root of 6694871 is about 188.4722453021.

The spelling of 6694871 in words is "six million, six hundred ninety-four thousand, eight hundred seventy-one".