398604171 has 24 divisors (see below), whose sum is σ = 623940240. Its totient is φ = 225675072.

The previous prime is 398604139. The next prime is 398604197. The reversal of 398604171 is 171406893.

It is not a de Polignac number, because 398604171 - 2⁵ = 398604139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398604121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3585 + ... + 28461.

It is an arithmetic number, because the mean of its divisors is an integer number (25997510).

Almost surely, 2^398604171 is an apocalyptic number.

398604171 is a deficient number, since it is larger than the sum of its proper divisors (225336069).

398604171 is a wasteful number, since it uses less digits than its factorization.

398604171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25003 (or 24996 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 398604171 is about 19965.0737789771. The cubic root of 398604171 is about 735.9482545487.

The spelling of 398604171 in words is "three hundred ninety-eight million, six hundred four thousand, one hundred seventy-one".