844523 has 2 divisors, whose sum is σ = 844524. Its totient is φ = 844522.

The previous prime is 844517. The next prime is 844549. The reversal of 844523 is 325448.

It is an a-pointer prime, because the next prime (844549) can be obtained adding 844523 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844523 - 2⁴ = 844507 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 844492 and 844501.

It is not a weakly prime, because it can be changed into another prime (844513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422261 + 422262.

It is an arithmetic number, because the mean of its divisors is an integer number (422262).

2⁸⁴⁴⁵²³ is an apocalyptic number.

844523 is a deficient number, since it is larger than the sum of its proper divisors (1).

844523 is an equidigital number, since it uses as much as digits as its factorization.

844523 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 844523 is about 918.9793251211. The cubic root of 844523 is about 94.5229267926.

The spelling of 844523 in words is "eight hundred forty-four thousand, five hundred twenty-three".