85404167 has 2 divisors, whose sum is σ = 85404168. Its totient is φ = 85404166.

The previous prime is 85404161. The next prime is 85404169. The reversal of 85404167 is 76140458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85404167 - 2¹⁸ = 85142023 is a prime.

Together with 85404169, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85404161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42702083 + 42702084.

It is an arithmetic number, because the mean of its divisors is an integer number (42702084).

Almost surely, 2^85404167 is an apocalyptic number.

85404167 is a deficient number, since it is larger than the sum of its proper divisors (1).

85404167 is an equidigital number, since it uses as much as digits as its factorization.

85404167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 85404167 is about 9241.4374964071. The cubic root of 85404167 is about 440.3787492946.

The spelling of 85404167 in words is "eighty-five million, four hundred four thousand, one hundred sixty-seven".