198853 has 4 divisors (see below), whose sum is σ = 205740. Its totient is φ = 191968.

The previous prime is 198851. The next prime is 198859. The reversal of 198853 is 358891.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37249 + 161604 = 193^2 + 402^2 .

It is a cyclic number.

It is not a de Polignac number, because 198853 - 2¹ = 198851 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400 + ... + 3457.

It is an arithmetic number, because the mean of its divisors is an integer number (51435).

2¹⁹⁸⁸⁵³ is an apocalyptic number.

It is an amenable number.

198853 is a deficient number, since it is larger than the sum of its proper divisors (6887).

198853 is an equidigital number, since it uses as much as digits as its factorization.

198853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886.

The product of its digits is 8640, while the sum is 34.

The square root of 198853 is about 445.9293666042. The cubic root of 198853 is about 58.3683454212.

The spelling of 198853 in words is "one hundred ninety-eight thousand, eight hundred fifty-three".