12656413 has 32 divisors (see below), whose sum is σ = 17095680. Its totient is φ = 9072000.

The previous prime is 12656387. The next prime is 12656419. The reversal of 12656413 is 31465621.

12656413 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12656413 - 2⁹ = 12655901 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

12656413 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59878 + ... + 60088.

It is an arithmetic number, because the mean of its divisors is an integer number (534240).

Almost surely, 2^12656413 is an apocalyptic number.

It is an amenable number.

12656413 is a deficient number, since it is larger than the sum of its proper divisors (4439267).

12656413 is a wasteful number, since it uses less digits than its factorization.

12656413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its digits is 4320, while the sum is 28.

The square root of 12656413 is about 3557.5852765605. The cubic root of 12656413 is about 233.0434383944.

The spelling of 12656413 in words is "twelve million, six hundred fifty-six thousand, four hundred thirteen".