198913333 has 4 divisors (see below), whose sum is σ = 199201888. Its totient is φ = 198624780.

The previous prime is 198913331. The next prime is 198913343. The reversal of 198913333 is 333319891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198913333 - 2¹ = 198913331 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 (198913331) 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, 143241 + ... + 144622.

It is an arithmetic number, because the mean of its divisors is an integer number (49800472).

Almost surely, 2^198913333 is an apocalyptic number.

It is an amenable number.

198913333 is a deficient number, since it is larger than the sum of its proper divisors (288555).

198913333 is an equidigital number, since it uses as much as digits as its factorization.

198913333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288554.

The product of its digits is 52488, while the sum is 40.

The square root of 198913333 is about 14103.6638147681. The cubic root of 198913333 is about 583.7424790744.

The spelling of 198913333 in words is "one hundred ninety-eight million, nine hundred thirteen thousand, three hundred thirty-three".