198343 has 4 divisors (see below), whose sum is σ = 199408. Its totient is φ = 197280.

The previous prime is 198337. The next prime is 198347. The reversal of 198343 is 343891.

198343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 198343 - 2⁹ = 197831 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198347) 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, 171 + ... + 652.

It is an arithmetic number, because the mean of its divisors is an integer number (49852).

2¹⁹⁸³⁴³ is an apocalyptic number.

198343 is a deficient number, since it is larger than the sum of its proper divisors (1065).

198343 is an equidigital number, since it uses as much as digits as its factorization.

198343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its digits is 2592, while the sum is 28.

The square root of 198343 is about 445.3571600412. The cubic root of 198343 is about 58.3184034354.

The spelling of 198343 in words is "one hundred ninety-eight thousand, three hundred forty-three".