844313 has 4 divisors (see below), whose sum is σ = 864948. Its totient is φ = 823680.

The previous prime is 844309. The next prime is 844321. The reversal of 844313 is 313448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 444889 + 399424 = 667^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 844313 - 2² = 844309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844013) 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, 10256 + ... + 10337.

It is an arithmetic number, because the mean of its divisors is an integer number (216237).

2⁸⁴⁴³¹³ is an apocalyptic number.

It is an amenable number.

844313 is a deficient number, since it is larger than the sum of its proper divisors (20635).

844313 is a wasteful number, since it uses less digits than its factorization.

844313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20634.

The product of its digits is 1152, while the sum is 23.

The square root of 844313 is about 918.8650608223. The cubic root of 844313 is about 94.5150914188.

The spelling of 844313 in words is "eight hundred forty-four thousand, three hundred thirteen".