12647232 has 112 divisors (see below), whose sum is σ = 40111680. Its totient is φ = 3884544.

The previous prime is 12647221. The next prime is 12647233. The reversal of 12647232 is 23274621.

12647232 is a `hidden beast` number, since 12 + 647 + 2 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12647196 and 12647205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22183 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (358140).

Almost surely, 2^12647232 is an apocalyptic number.

12647232 is a gapful number since it is divisible by the number (12) 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 12647232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20055840).

12647232 is an abundant number, since it is smaller than the sum of its proper divisors (27464448).

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

12647232 is a wasteful number, since it uses less digits than its factorization.

12647232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 581 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 12647232 is about 3556.2947009493. The cubic root of 12647232 is about 232.9870746267.

The spelling of 12647232 in words is "twelve million, six hundred forty-seven thousand, two hundred thirty-two".