12647424 has 88 divisors (see below), whose sum is σ = 35372160. Its totient is φ = 4009984.

The previous prime is 12647419. The next prime is 12647477. The reversal of 12647424 is 42474621.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 12647391 and 12647400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70567 + ... + 70745.

Almost surely, 2^12647424 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 12647424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17686080).

12647424 is an abundant number, since it is smaller than the sum of its proper divisors (22724736).

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

12647424 is a wasteful number, since it uses less digits than its factorization.

12647424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 207 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 12647424 is about 3556.3216952351. The cubic root of 12647424 is about 232.9882536275.

The spelling of 12647424 in words is "twelve million, six hundred forty-seven thousand, four hundred twenty-four".