198048247 has 4 divisors (see below), whose sum is σ = 198588256. Its totient is φ = 197508240.

The previous prime is 198048233. The next prime is 198048329. The reversal of 198048247 is 742840891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198048247 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 (198048217) 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, 269454 + ... + 270187.

It is an arithmetic number, because the mean of its divisors is an integer number (49647064).

Almost surely, 2^198048247 is an apocalyptic number.

198048247 is a deficient number, since it is larger than the sum of its proper divisors (540009).

198048247 is an equidigital number, since it uses as much as digits as its factorization.

198048247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540008.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 198048247 is about 14072.9615575400. The cubic root of 198048247 is about 582.8950056445.

The spelling of 198048247 in words is "one hundred ninety-eight million, forty-eight thousand, two hundred forty-seven".