198869 has 8 divisors (see below), whose sum is σ = 220320. Its totient is φ = 178000.

The previous prime is 198859. The next prime is 198899. The reversal of 198869 is 968891.

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

It is a cyclic number.

It is not a de Polignac number, because 198869 - 2⁸ = 198613 is a prime.

It is a super-2 number, since 2×198869² = 79097758322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2¹⁹⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

198869 is a deficient number, since it is larger than the sum of its proper divisors (21451).

198869 is a wasteful number, since it uses less digits than its factorization.

198869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its digits is 31104, while the sum is 41.

The square root of 198869 is about 445.9473063042. The cubic root of 198869 is about 58.3699108464.

It can be divided in two parts, 19 and 8869, that added together give a palindrome (8888).

The spelling of 198869 in words is "one hundred ninety-eight thousand, eight hundred sixty-nine".