6855967 has 2 divisors, whose sum is σ = 6855968. Its totient is φ = 6855966.

The previous prime is 6855931. The next prime is 6855971. The reversal of 6855967 is 7695586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6855967 - 2¹⁵ = 6823199 is a prime.

It is a Chen prime.

6855967 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6850967) 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, 3427983 + 3427984.

It is an arithmetic number, because the mean of its divisors is an integer number (3427984).

Almost surely, 2^6855967 is an apocalyptic number.

6855967 is a deficient number, since it is larger than the sum of its proper divisors (1).

6855967 is an equidigital number, since it uses as much as digits as its factorization.

6855967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 6855967 is about 2618.3901542742. The cubic root of 6855967 is about 189.9719903309.

The spelling of 6855967 in words is "six million, eight hundred fifty-five thousand, nine hundred sixty-seven".