198671199 has 16 divisors (see below), whose sum is σ = 280717920. Its totient is φ = 124759040.

The previous prime is 198671131. The next prime is 198671237. The reversal of 198671199 is 991176891.

It is a cyclic number.

It is not a de Polignac number, because 198671199 - 2⁷ = 198671071 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198671119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24282 + ... + 31415.

It is an arithmetic number, because the mean of its divisors is an integer number (17544870).

Almost surely, 2^198671199 is an apocalyptic number.

198671199 is a deficient number, since it is larger than the sum of its proper divisors (82046721).

198671199 is a wasteful number, since it uses less digits than its factorization.

198671199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55770.

The product of its digits is 244944, while the sum is 51.

The square root of 198671199 is about 14095.0771193350. The cubic root of 198671199 is about 583.5055227914.

The spelling of 198671199 in words is "one hundred ninety-eight million, six hundred seventy-one thousand, one hundred ninety-nine".