398577167 has 2 divisors, whose sum is σ = 398577168. Its totient is φ = 398577166.

The previous prime is 398577161. The next prime is 398577187. The reversal of 398577167 is 761775893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398577167 - 2⁸ = 398576911 is a 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 (398577161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199288583 + 199288584.

It is an arithmetic number, because the mean of its divisors is an integer number (199288584).

Almost surely, 2^398577167 is an apocalyptic number.

398577167 is a deficient number, since it is larger than the sum of its proper divisors (1).

398577167 is an equidigital number, since it uses as much as digits as its factorization.

398577167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222640, while the sum is 53.

The square root of 398577167 is about 19964.3974865259. The cubic root of 398577167 is about 735.9316348903.

The spelling of 398577167 in words is "three hundred ninety-eight million, five hundred seventy-seven thousand, one hundred sixty-seven".