844243 has 2 divisors, whose sum is σ = 844244. Its totient is φ = 844242.

The previous prime is 844201. The next prime is 844247. The reversal of 844243 is 342448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 844243 - 2¹⁷ = 713171 is a prime.

844243 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (844247) 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, 422121 + 422122.

It is an arithmetic number, because the mean of its divisors is an integer number (422122).

2⁸⁴⁴²⁴³ is an apocalyptic number.

844243 is a deficient number, since it is larger than the sum of its proper divisors (1).

844243 is an equidigital number, since it uses as much as digits as its factorization.

844243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 25.

The square root of 844243 is about 918.8269695650. The cubic root of 844243 is about 94.5124793389.

The spelling of 844243 in words is "eight hundred forty-four thousand, two hundred forty-three".