198322863 has 16 divisors (see below), whose sum is σ = 272111616. Its totient is φ = 128404160.

The previous prime is 198322853. The next prime is 198322879. The reversal of 198322863 is 368223891.

It is a cyclic number.

It is not a de Polignac number, because 198322863 - 2⁹ = 198322351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198322853) 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, 24370 + ... + 31472.

It is an arithmetic number, because the mean of its divisors is an integer number (17006976).

Almost surely, 2^198322863 is an apocalyptic number.

198322863 is a deficient number, since it is larger than the sum of its proper divisors (73788753).

198322863 is a wasteful number, since it uses less digits than its factorization.

198322863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374.

The product of its digits is 124416, while the sum is 42.

The square root of 198322863 is about 14082.7150436271. The cubic root of 198322863 is about 583.1642975438.

The spelling of 198322863 in words is "one hundred ninety-eight million, three hundred twenty-two thousand, eight hundred sixty-three".