398101 has 4 divisors (see below), whose sum is σ = 434304. Its totient is φ = 361900.

The previous prime is 398087. The next prime is 398113. The reversal of 398101 is 101893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 398101 - 2⁷ = 397973 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18085 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (108576).

2³⁹⁸¹⁰¹ is an apocalyptic number.

It is an amenable number.

398101 is a deficient number, since it is larger than the sum of its proper divisors (36203).

398101 is a wasteful number, since it uses less digits than its factorization.

398101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36202.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 398101 is about 630.9524546271. The cubic root of 398101 is about 73.5638453688.

Adding to 398101 its reverse (101893), we get a palindrome (499994).

The spelling of 398101 in words is "three hundred ninety-eight thousand, one hundred one".