198342843 has 8 divisors (see below), whose sum is σ = 278376000. Its totient is φ = 125269128.

The previous prime is 198342841. The next prime is 198342857. The reversal of 198342843 is 348243891.

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

It is not a de Polignac number, because 198342843 - 2¹ = 198342841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198342795 and 198342804.

It is not an unprimeable number, because it can be changed into a prime (198342841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739793 + ... + 1739906.

It is an arithmetic number, because the mean of its divisors is an integer number (34797000).

Almost surely, 2^198342843 is an apocalyptic number.

198342843 is a deficient number, since it is larger than the sum of its proper divisors (80033157).

198342843 is a wasteful number, since it uses less digits than its factorization.

198342843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479721.

The product of its digits is 165888, while the sum is 42.

The square root of 198342843 is about 14083.4244060172. The cubic root of 198342843 is about 583.1838804792.

The spelling of 198342843 in words is "one hundred ninety-eight million, three hundred forty-two thousand, eight hundred forty-three".