844123 has 16 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 685608.

The previous prime is 844121. The next prime is 844127. The reversal of 844123 is 321448.

It is not a de Polignac number, because 844123 - 2¹ = 844121 is a prime.

It is a Duffinian number.

844123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 844094 and 844103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844121) 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 in 15 ways as a sum of consecutive naturals, for example, 7836 + ... + 7942.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁸⁴⁴¹²³ is an apocalyptic number.

844123 is a deficient number, since it is larger than the sum of its proper divisors (192677).

844123 is a wasteful number, since it uses less digits than its factorization.

844123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 137 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 844123 is about 918.7616665926. The cubic root of 844123 is about 94.5080011515.

It can be divided in two parts, 8441 and 23, that added together give a square (8464 = 92²).

The spelling of 844123 in words is "eight hundred forty-four thousand, one hundred twenty-three".