12663917 has 8 divisors (see below), whose sum is σ = 14570112. Its totient is φ = 10782000.

The previous prime is 12663913. The next prime is 12663919. The reversal of 12663917 is 71936621.

12663917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12663917 - 2² = 12663913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4934 + ... + 7047.

It is an arithmetic number, because the mean of its divisors is an integer number (1821264).

Almost surely, 2^12663917 is an apocalyptic number.

It is an amenable number.

12663917 is a deficient number, since it is larger than the sum of its proper divisors (1906195).

12663917 is a wasteful number, since it uses less digits than its factorization.

12663917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12139.

The product of its digits is 13608, while the sum is 35.

The square root of 12663917 is about 3558.6397682261. The cubic root of 12663917 is about 233.0894865246.

The spelling of 12663917 in words is "twelve million, six hundred sixty-three thousand, nine hundred seventeen".