198863267 has 6 divisors (see below), whose sum is σ = 207885972. Its totient is φ = 190216532.

The previous prime is 198863239. The next prime is 198863281. The reversal of 198863267 is 762368891.

It is not a de Polignac number, because 198863267 - 2⁸ = 198863011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198863167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187433 + ... + 188490.

It is an arithmetic number, because the mean of its divisors is an integer number (34647662).

Almost surely, 2^198863267 is an apocalyptic number.

198863267 is a deficient number, since it is larger than the sum of its proper divisors (9022705).

198863267 is an equidigital number, since it uses as much as digits as its factorization.

198863267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375969 (or 375946 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 198863267 is about 14101.8887742033. Note that the first 3 decimals coincide. The cubic root of 198863267 is about 583.6934994462.

The spelling of 198863267 in words is "one hundred ninety-eight million, eight hundred sixty-three thousand, two hundred sixty-seven".