198203289 has 8 divisors (see below), whose sum is σ = 279816480. Its totient is φ = 124362816.

The previous prime is 198203287. The next prime is 198203293. The reversal of 198203289 is 982302891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198203289 - 2¹ = 198203287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198203289.

It is not an unprimeable number, because it can be changed into a prime (198203281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943119 + ... + 1943220.

It is an arithmetic number, because the mean of its divisors is an integer number (34977060).

Almost surely, 2^198203289 is an apocalyptic number.

It is an amenable number.

198203289 is a deficient number, since it is larger than the sum of its proper divisors (81613191).

198203289 is a wasteful number, since it uses less digits than its factorization.

198203289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886359.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 198203289 is about 14078.4689863635. The cubic root of 198203289 is about 583.0470723525.

The spelling of 198203289 in words is "one hundred ninety-eight million, two hundred three thousand, two hundred eighty-nine".