398371 has 4 divisors (see below), whose sum is σ = 401544. Its totient is φ = 395200.

The previous prime is 398369. The next prime is 398393. The reversal of 398371 is 173893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398371 - 2¹ = 398369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (100386).

2³⁹⁸³⁷¹ is an apocalyptic number.

398371 is a deficient number, since it is larger than the sum of its proper divisors (3173).

398371 is a wasteful number, since it uses less digits than its factorization.

398371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its digits is 4536, while the sum is 31.

The square root of 398371 is about 631.1663806002. The cubic root of 398371 is about 73.5804724305.

The spelling of 398371 in words is "three hundred ninety-eight thousand, three hundred seventy-one".