398131203 has 4 divisors (see below), whose sum is σ = 530841608. Its totient is φ = 265420800.

The previous prime is 398131189. The next prime is 398131229. The reversal of 398131203 is 302131893.

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

It is not a de Polignac number, because 398131203 - 2²⁶ = 331022339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398131243) 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, 66355198 + ... + 66355203.

It is an arithmetic number, because the mean of its divisors is an integer number (132710402).

Almost surely, 2^398131203 is an apocalyptic number.

398131203 is a deficient number, since it is larger than the sum of its proper divisors (132710405).

398131203 is a wasteful number, since it uses less digits than its factorization.

398131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132710404.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 398131203 is about 19953.2253783693. The cubic root of 398131203 is about 735.6570569456.

The spelling of 398131203 in words is "three hundred ninety-eight million, one hundred thirty-one thousand, two hundred three".