199079 has 4 divisors (see below), whose sum is σ = 200184. Its totient is φ = 197976.

The previous prime is 199049. The next prime is 199081. The reversal of 199079 is 970991.

It is a happy number.

199079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 199079 - 2⁸ = 198823 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 (199039) 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, 212 + ... + 665.

It is an arithmetic number, because the mean of its divisors is an integer number (50046).

2¹⁹⁹⁰⁷⁹ is an apocalyptic number.

199079 is a deficient number, since it is larger than the sum of its proper divisors (1105).

199079 is an equidigital number, since it uses as much as digits as its factorization.

199079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 199079 is about 446.1826980061. The cubic root of 199079 is about 58.3904492732.

The spelling of 199079 in words is "one hundred ninety-nine thousand, seventy-nine".