198768203 has 4 divisors (see below), whose sum is σ = 198797088. Its totient is φ = 198739320.

The previous prime is 198768173. The next prime is 198768211. The reversal of 198768203 is 302867891.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 198768203 - 2¹² = 198764107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198767203) 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, 2525 + ... + 20097.

It is an arithmetic number, because the mean of its divisors is an integer number (49699272).

Almost surely, 2^198768203 is an apocalyptic number.

198768203 is a deficient number, since it is larger than the sum of its proper divisors (28885).

198768203 is a wasteful number, since it uses less digits than its factorization.

198768203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28884.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 198768203 is about 14098.5177589703. The cubic root of 198768203 is about 583.6004755915.

The spelling of 198768203 in words is "one hundred ninety-eight million, seven hundred sixty-eight thousand, two hundred three".