12624417 has 40 divisors (see below), whose sum is σ = 21412160. Its totient is φ = 7348320.

The previous prime is 12624389. The next prime is 12624419. The reversal of 12624417 is 71442621.

It is not a de Polignac number, because 12624417 - 2¹⁰ = 12623393 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12624419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19692 + ... + 20322.

It is an arithmetic number, because the mean of its divisors is an integer number (535304).

Almost surely, 2^12624417 is an apocalyptic number.

It is an amenable number.

12624417 is a deficient number, since it is larger than the sum of its proper divisors (8787743).

12624417 is a wasteful number, since it uses less digits than its factorization.

12624417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 666 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 12624417 is about 3553.0855604671. The cubic root of 12624417 is about 232.8468911284.

It can be divided in two parts, 12624 and 417, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12624417 in words is "twelve million, six hundred twenty-four thousand, four hundred seventeen".