844253 has 2 divisors, whose sum is σ = 844254. Its totient is φ = 844252.

The previous prime is 844247. The next prime is 844279. The reversal of 844253 is 352448.

It is an a-pointer prime, because the next prime (844279) can be obtained adding 844253 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840889 + 3364 = 917^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 844253 - 2¹⁰ = 843229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422126 + 422127.

It is an arithmetic number, because the mean of its divisors is an integer number (422127).

2⁸⁴⁴²⁵³ is an apocalyptic number.

It is an amenable number.

844253 is a deficient number, since it is larger than the sum of its proper divisors (1).

844253 is an equidigital number, since it uses as much as digits as its factorization.

844253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 26.

The square root of 844253 is about 918.8324112699. The cubic root of 844253 is about 94.5128525020.

The spelling of 844253 in words is "eight hundred forty-four thousand, two hundred fifty-three".