8398 has 16 divisors (see below), whose sum is σ = 15120. Its totient is φ = 3456.

The previous prime is 8389. The next prime is 8419. The reversal of 8398 is 8938.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433 + ... + 451.

It is an arithmetic number, because the mean of its divisors is an integer number (945).

2⁸³⁹⁸ is an apocalyptic number.

8398 is a deficient number, since it is larger than the sum of its proper divisors (6722).

8398 is a wasteful number, since it uses less digits than its factorization.

8398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51.

The product of its digits is 1728, while the sum is 28.

The square root of 8398 is about 91.6406023551. The cubic root of 8398 is about 20.3263136807.

Subtracting from 8398 its product of digits (1728), we obtain a triangular number (6670 = T₁₁₅).

It can be divided in two parts, 83 and 98, that added together give a palindrome (181).

The spelling of 8398 in words is "eight thousand, three hundred ninety-eight".