199589 has 6 divisors (see below), whose sum is σ = 216306. Its totient is φ = 184080.

The previous prime is 199583. The next prime is 199601. The reversal of 199589 is 985991.

199589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 12100 + 187489 = 110^2 + 433^2 .

It is not a de Polignac number, because 199589 - 2¹² = 195493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 199589.

It is not an unprimeable number, because it can be changed into a prime (199583) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (36051).

2¹⁹⁹⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

199589 is a deficient number, since it is larger than the sum of its proper divisors (16717).

199589 is a wasteful number, since it uses less digits than its factorization.

199589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1194 counting only the distinct ones).

The product of its digits is 29160, while the sum is 41.

The square root of 199589 is about 446.7538472134. The cubic root of 199589 is about 58.4402682494.

The spelling of 199589 in words is "one hundred ninety-nine thousand, five hundred eighty-nine".