12647936 has 40 divisors (see below), whose sum is σ = 28889520. Its totient is φ = 5419008.

The previous prime is 12647909. The next prime is 12647959. The reversal of 12647936 is 63974621.

It is a pancake number, because a pancake can be divided into 12647936 parts by 5029 straight cuts.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12647936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820 + ... + 5348.

It is an arithmetic number, because the mean of its divisors is an integer number (722238).

Almost surely, 2^12647936 is an apocalyptic number.

12647936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12647936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14444760).

12647936 is an abundant number, since it is smaller than the sum of its proper divisors (16241584).

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

12647936 is an frugal number, since it uses more digits than its factorization.

12647936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3538 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 12647936 is about 3556.3936789956. The cubic root of 12647936 is about 232.9913975715.

The spelling of 12647936 in words is "twelve million, six hundred forty-seven thousand, nine hundred thirty-six".