198856 has 32 divisors (see below), whose sum is σ = 440640. Its totient is φ = 82368.

The previous prime is 198851. The next prime is 198859. The reversal of 198856 is 658891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198851) by changing a digit.

198856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2935 + ... + 3001.

It is an arithmetic number, because the mean of its divisors is an integer number (13770).

2¹⁹⁸⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220320).

198856 is an abundant number, since it is smaller than the sum of its proper divisors (241784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198856 is a wasteful number, since it uses less digits than its factorization.

198856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 129 counting only the distinct ones).

The product of its digits is 17280, while the sum is 37.

The square root of 198856 is about 445.9327303529. The cubic root of 198856 is about 58.3686389448.

It can be divided in two parts, 19885 and 6, that added together give a palindrome (19891).

The spelling of 198856 in words is "one hundred ninety-eight thousand, eight hundred fifty-six".