12844887 has 16 divisors (see below), whose sum is σ = 18860160. Its totient is φ = 7711200.

The previous prime is 12844873. The next prime is 12844901. The reversal of 12844887 is 78844821.

It is an interprime number because it is at equal distance from previous prime (12844873) and next prime (12844901).

It is not a de Polignac number, because 12844887 - 2⁸ = 12844631 is a prime.

It is a super-2 number, since 2×12844887² = 329982244085538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12844807) 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 in 15 ways as a sum of consecutive naturals, for example, 1812 + ... + 5382.

It is an arithmetic number, because the mean of its divisors is an integer number (1178760).

Almost surely, 2^12844887 is an apocalyptic number.

12844887 is a deficient number, since it is larger than the sum of its proper divisors (6015273).

12844887 is a wasteful number, since it uses less digits than its factorization.

12844887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694.

The product of its digits is 114688, while the sum is 42.

The square root of 12844887 is about 3583.9764229135. The cubic root of 12844887 is about 234.1945383479.

It can be divided in two parts, 12844 and 887, that added together give a palindrome (13731).

The spelling of 12844887 in words is "twelve million, eight hundred forty-four thousand, eight hundred eighty-seven".