12663317 has 16 divisors (see below), whose sum is σ = 14152320. Its totient is φ = 11269632.

The previous prime is 12663311. The next prime is 12663319. The reversal of 12663317 is 71336621.

It is not a de Polignac number, because 12663317 - 2¹⁸ = 12401173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12663317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663311) 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, 54233 + ... + 54465.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^12663317 is an apocalyptic number.

12663317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12663317 is a deficient number, since it is larger than the sum of its proper divisors (1489003).

12663317 is a wasteful number, since it uses less digits than its factorization.

12663317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its digits is 4536, while the sum is 29.

The square root of 12663317 is about 3558.5554653539. Note that the first 3 decimals coincide. The cubic root of 12663317 is about 233.0858053071.

Adding to 12663317 its reverse (71336621), we get a palindrome (83999938).

The spelling of 12663317 in words is "twelve million, six hundred sixty-three thousand, three hundred seventeen".