198998275 has 24 divisors (see below), whose sum is σ = 283044384. Its totient is φ = 135955200.

The previous prime is 198998263. The next prime is 198998309. The reversal of 198998275 is 572899891.

It is not a de Polignac number, because 198998275 - 2¹⁹ = 198473987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49335 + ... + 53215.

It is an arithmetic number, because the mean of its divisors is an integer number (11793516).

Almost surely, 2^198998275 is an apocalyptic number.

198998275 is a deficient number, since it is larger than the sum of its proper divisors (84046109).

198998275 is a wasteful number, since it uses less digits than its factorization.

198998275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191 (or 4186 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 58.

The square root of 198998275 is about 14106.6748385295. The cubic root of 198998275 is about 583.8255591385.

The spelling of 198998275 in words is "one hundred ninety-eight million, nine hundred ninety-eight thousand, two hundred seventy-five".