23198 has 8 divisors (see below), whose sum is σ = 39792. Its totient is φ = 9936.

The previous prime is 23197. The next prime is 23201. The reversal of 23198 is 89132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23197) 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, 815 + ... + 842.

It is an arithmetic number, because the mean of its divisors is an integer number (4974).

2²³¹⁹⁸ is an apocalyptic number.

23198 is a deficient number, since it is larger than the sum of its proper divisors (16594).

23198 is a wasteful number, since it uses less digits than its factorization.

23198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666.

The product of its digits is 432, while the sum is 23.

The square root of 23198 is about 152.3088966541. The cubic root of 23198 is about 28.5200433543.

It can be divided in two parts, 23 and 198, that multiplied together give a palindrome (4554).

The spelling of 23198 in words is "twenty-three thousand, one hundred ninety-eight".