398171 has 2 divisors, whose sum is σ = 398172. Its totient is φ = 398170.

The previous prime is 398149. The next prime is 398207. The reversal of 398171 is 171893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398171 - 2¹⁸ = 136027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (398471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199085 + 199086.

It is an arithmetic number, because the mean of its divisors is an integer number (199086).

2³⁹⁸¹⁷¹ is an apocalyptic number.

398171 is a deficient number, since it is larger than the sum of its proper divisors (1).

398171 is an equidigital number, since it uses as much as digits as its factorization.

398171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 29.

The square root of 398171 is about 631.0079238805. The cubic root of 398171 is about 73.5681568102.

The spelling of 398171 in words is "three hundred ninety-eight thousand, one hundred seventy-one".