199833889 has 2 divisors, whose sum is σ = 199833890. Its totient is φ = 199833888.

The previous prime is 199833847. The next prime is 199833917. The reversal of 199833889 is 988338991.

199833889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115928289 + 83905600 = 10767^2 + 9160^2 .

It is a cyclic number.

It is not a de Polignac number, because 199833889 - 2¹⁷ = 199702817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199033889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99916944 + 99916945.

It is an arithmetic number, because the mean of its divisors is an integer number (99916945).

Almost surely, 2^199833889 is an apocalyptic number.

It is an amenable number.

199833889 is a deficient number, since it is larger than the sum of its proper divisors (1).

199833889 is an equidigital number, since it uses as much as digits as its factorization.

199833889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 58.

The square root of 199833889 is about 14136.2614930540. The cubic root of 199833889 is about 584.6415989617.

The spelling of 199833889 in words is "one hundred ninety-nine million, eight hundred thirty-three thousand, eight hundred eighty-nine".