398211 has 12 divisors (see below), whose sum is σ = 584136. Its totient is φ = 241120.

The previous prime is 398207. The next prime is 398213. The reversal of 398211 is 112893.

It is not a de Polignac number, because 398211 - 2² = 398207 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (398213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186 + ... + 911.

It is an arithmetic number, because the mean of its divisors is an integer number (48678).

2³⁹⁸²¹¹ is an apocalyptic number.

398211 is a deficient number, since it is larger than the sum of its proper divisors (185925).

398211 is a wasteful number, since it uses less digits than its factorization.

398211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1111 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 398211 is about 631.0396184076. The cubic root of 398211 is about 73.5706202641.

It can be divided in two parts, 3982 and 11, that added together give a palindrome (3993).

The spelling of 398211 in words is "three hundred ninety-eight thousand, two hundred eleven".