12844859 has 2 divisors, whose sum is σ = 12844860. Its totient is φ = 12844858.

The previous prime is 12844841. The next prime is 12844873. The reversal of 12844859 is 95844821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12844859 is a prime.

It is not a weakly prime, because it can be changed into another prime (12844259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6422429 + 6422430.

It is an arithmetic number, because the mean of its divisors is an integer number (6422430).

Almost surely, 2^12844859 is an apocalyptic number.

12844859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12844859 is an equidigital number, since it uses as much as digits as its factorization.

12844859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 41.

The square root of 12844859 is about 3583.9725166357. The cubic root of 12844859 is about 234.1943681777.

The spelling of 12844859 in words is "twelve million, eight hundred forty-four thousand, eight hundred fifty-nine".