198847263 has 4 divisors (see below), whose sum is σ = 265129688. Its totient is φ = 132564840.

The previous prime is 198847247. The next prime is 198847267. The reversal of 198847263 is 362748891.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 198847263 - 2⁴ = 198847247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198847267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33141208 + ... + 33141213.

It is an arithmetic number, because the mean of its divisors is an integer number (66282422).

Almost surely, 2^198847263 is an apocalyptic number.

198847263 is a deficient number, since it is larger than the sum of its proper divisors (66282425).

198847263 is an equidigital number, since it uses as much as digits as its factorization.

198847263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66282424.

The product of its digits is 580608, while the sum is 48.

The square root of 198847263 is about 14101.3213210678. The cubic root of 198847263 is about 583.6778409798.

The spelling of 198847263 in words is "one hundred ninety-eight million, eight hundred forty-seven thousand, two hundred sixty-three".