12663493 has 2 divisors, whose sum is σ = 12663494. Its totient is φ = 12663492.

The previous prime is 12663479. The next prime is 12663569. The reversal of 12663493 is 39436621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12096484 + 567009 = 3478^2 + 753^2 .

It is a cyclic number.

It is not a de Polignac number, because 12663493 - 2²¹ = 10566341 is a prime.

It is a super-2 number, since 2×12663493² = 320728109922098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12663403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331746 + 6331747.

It is an arithmetic number, because the mean of its divisors is an integer number (6331747).

Almost surely, 2^12663493 is an apocalyptic number.

It is an amenable number.

12663493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663493 is an equidigital number, since it uses as much as digits as its factorization.

12663493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 34.

The square root of 12663493 is about 3558.5801944034. The cubic root of 12663493 is about 233.0868851429.

The spelling of 12663493 in words is "twelve million, six hundred sixty-three thousand, four hundred ninety-three".