12663423 has 6 divisors (see below), whose sum is σ = 18291624. Its totient is φ = 8442276.

The previous prime is 12663403. The next prime is 12663433. The reversal of 12663423 is 32436621.

12663423 is a `hidden beast` number, since 1 + 2 + 6 + 634 + 23 = 666.

It is not a de Polignac number, because 12663423 - 2⁶ = 12663359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 703515 + ... + 703532.

It is an arithmetic number, because the mean of its divisors is an integer number (3048604).

Almost surely, 2^12663423 is an apocalyptic number.

12663423 is a deficient number, since it is larger than the sum of its proper divisors (5628201).

12663423 is a wasteful number, since it uses less digits than its factorization.

12663423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407053 (or 1407050 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 12663423 is about 3558.5703590065. The cubic root of 12663423 is about 233.0864556640.

It can be divided in two parts, 1 and 2663423, that added together give a square (2663424 = 1632²).

The spelling of 12663423 in words is "twelve million, six hundred sixty-three thousand, four hundred twenty-three".