844913 has 2 divisors, whose sum is σ = 844914. Its totient is φ = 844912.

The previous prime is 844903. The next prime is 844927. The reversal of 844913 is 319448.

844913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824464 + 20449 = 908^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 844913 - 2⁴ = 844897 is a prime.

It is not a weakly prime, because it can be changed into another prime (844903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422456 + 422457.

It is an arithmetic number, because the mean of its divisors is an integer number (422457).

2⁸⁴⁴⁹¹³ is an apocalyptic number.

It is an amenable number.

844913 is a deficient number, since it is larger than the sum of its proper divisors (1).

844913 is an equidigital number, since it uses as much as digits as its factorization.

844913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 844913 is about 919.1914925629. The cubic root of 844913 is about 94.5374747557.

The spelling of 844913 in words is "eight hundred forty-four thousand, nine hundred thirteen".