856325867 has 2 divisors, whose sum is σ = 856325868. Its totient is φ = 856325866.

The previous prime is 856325809. The next prime is 856325893. The reversal of 856325867 is 768523658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 856325867 - 2²⁴ = 839548651 is a prime.

It is not a weakly prime, because it can be changed into another prime (856321867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428162933 + 428162934.

It is an arithmetic number, because the mean of its divisors is an integer number (428162934).

Almost surely, 2^856325867 is an apocalyptic number.

856325867 is a deficient number, since it is larger than the sum of its proper divisors (1).

856325867 is an equidigital number, since it uses as much as digits as its factorization.

856325867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 50.

The square root of 856325867 is about 29263.0460991333. The cubic root of 856325867 is about 949.6123504275.

The spelling of 856325867 in words is "eight hundred fifty-six million, three hundred twenty-five thousand, eight hundred sixty-seven".