398595163 has 2 divisors, whose sum is σ = 398595164. Its totient is φ = 398595162.

The previous prime is 398595157. The next prime is 398595181. The reversal of 398595163 is 361595893.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398595163 - 2¹⁷ = 398464091 is a prime.

It is not a weakly prime, because it can be changed into another prime (398595143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199297581 + 199297582.

It is an arithmetic number, because the mean of its divisors is an integer number (199297582).

Almost surely, 2^398595163 is an apocalyptic number.

398595163 is a deficient number, since it is larger than the sum of its proper divisors (1).

398595163 is an equidigital number, since it uses as much as digits as its factorization.

398595163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 49.

The square root of 398595163 is about 19964.8481837453. The cubic root of 398595163 is about 735.9427106430.

The spelling of 398595163 in words is "three hundred ninety-eight million, five hundred ninety-five thousand, one hundred sixty-three".