198469863 has 12 divisors (see below), whose sum is σ = 287298648. Its totient is φ = 132027120.

The previous prime is 198469853. The next prime is 198469867. The reversal of 198469863 is 368964891.

It is not a de Polignac number, because 198469863 - 2¹⁰ = 198468839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198469867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19408 + ... + 27813.

It is an arithmetic number, because the mean of its divisors is an integer number (23941554).

Almost surely, 2^198469863 is an apocalyptic number.

198469863 is a deficient number, since it is larger than the sum of its proper divisors (88828785).

198469863 is a wasteful number, since it uses less digits than its factorization.

198469863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47694 (or 47691 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 198469863 is about 14087.9332408980. The cubic root of 198469863 is about 583.3083454512.

The spelling of 198469863 in words is "one hundred ninety-eight million, four hundred sixty-nine thousand, eight hundred sixty-three".