844199 has 2 divisors, whose sum is σ = 844200. Its totient is φ = 844198.

The previous prime is 844187. The next prime is 844201. The reversal of 844199 is 991448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 844199 - 2⁴ = 844183 is a prime.

Together with 844201, it forms a pair of twin primes.

It is a Chen prime.

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 844199.

It is not a weakly prime, because it can be changed into another prime (844139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422099 + 422100.

It is an arithmetic number, because the mean of its divisors is an integer number (422100).

2⁸⁴⁴¹⁹⁹ is an apocalyptic number.

844199 is a deficient number, since it is larger than the sum of its proper divisors (1).

844199 is an equidigital number, since it uses as much as digits as its factorization.

844199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 844199 is about 918.8030256807. The cubic root of 844199 is about 94.5108373861.

The spelling of 844199 in words is "eight hundred forty-four thousand, one hundred ninety-nine".