198838267 has 4 divisors (see below), whose sum is σ = 198886840. Its totient is φ = 198789696.

The previous prime is 198838261. The next prime is 198838271. The reversal of 198838267 is 762838891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 762838891 = 2473 ⋅308467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198838267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198838261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17517 + ... + 26542.

It is an arithmetic number, because the mean of its divisors is an integer number (49721710).

Almost surely, 2^198838267 is an apocalyptic number.

198838267 is a deficient number, since it is larger than the sum of its proper divisors (48573).

198838267 is an equidigital number, since it uses as much as digits as its factorization.

198838267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48572.

The product of its digits is 1161216, while the sum is 52.

The square root of 198838267 is about 14101.0023402594. The cubic root of 198838267 is about 583.6690388386.

The spelling of 198838267 in words is "one hundred ninety-eight million, eight hundred thirty-eight thousand, two hundred sixty-seven".