199829 has 4 divisors (see below), whose sum is σ = 228384. Its totient is φ = 171276.

The previous prime is 199819. The next prime is 199831. The reversal of 199829 is 928991.

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 not a de Polignac number, because 199829 - 2⁴ = 199813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199792 and 199801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14267 + ... + 14280.

It is an arithmetic number, because the mean of its divisors is an integer number (57096).

2¹⁹⁹⁸²⁹ is an apocalyptic number.

It is an amenable number.

199829 is a deficient number, since it is larger than the sum of its proper divisors (28555).

199829 is an equidigital number, since it uses as much as digits as its factorization.

199829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28554.

The product of its digits is 11664, while the sum is 38.

The square root of 199829 is about 447.0223708049. The cubic root of 199829 is about 58.4636831108.

It can be divided in two parts, 19982 and 9, that added together give a palindrome (19991).

The spelling of 199829 in words is "one hundred ninety-nine thousand, eight hundred twenty-nine".