12843688 has 64 divisors (see below), whose sum is σ = 28828800. Its totient is φ = 5287680.

The previous prime is 12843647. The next prime is 12843689. The reversal of 12843688 is 88634821.

It is a self number, because there is not a number n which added to its sum of digits gives 12843688.

It is not an unprimeable number, because it can be changed into a prime (12843689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117778 + ... + 117886.

It is an arithmetic number, because the mean of its divisors is an integer number (450450).

Almost surely, 2^12843688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12843688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14414400).

12843688 is an abundant number, since it is smaller than the sum of its proper divisors (15985112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12843688 is a wasteful number, since it uses less digits than its factorization.

12843688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 12843688 is about 3583.8091467041. The cubic root of 12843688 is about 234.1872511944.

It can be divided in two parts, 12843 and 688, that added together give a palindrome (13531).

The spelling of 12843688 in words is "twelve million, eight hundred forty-three thousand, six hundred eighty-eight".