198843 has 8 divisors (see below), whose sum is σ = 268800. Its totient is φ = 130728.

The previous prime is 198841. The next prime is 198851. The reversal of 198843 is 348891.

198843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 198843 - 2¹ = 198841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198841) 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, 183 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (33600).

2¹⁹⁸⁸⁴³ is an apocalyptic number.

198843 is a deficient number, since it is larger than the sum of its proper divisors (69957).

198843 is an equidigital number, since it uses as much as digits as its factorization.

198843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its digits is 6912, while the sum is 33.

The square root of 198843 is about 445.9181539251. The cubic root of 198843 is about 58.3673669878.

The spelling of 198843 in words is "one hundred ninety-eight thousand, eight hundred forty-three".