12663243 has 8 divisors (see below), whose sum is σ = 18760400. Its totient is φ = 8442144.

The previous prime is 12663241. The next prime is 12663247. The reversal of 12663243 is 34236621.

12663243 is a `hidden beast` number, since 1 + 26 + 632 + 4 + 3 = 666.

12663243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12663243 - 2¹ = 12663241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 469009 = 12663243 / (1 + 2 + 6 + 6 + 3 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12663241) 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, 234478 + ... + 234531.

It is an arithmetic number, because the mean of its divisors is an integer number (2345050).

Almost surely, 2^12663243 is an apocalyptic number.

12663243 is a deficient number, since it is larger than the sum of its proper divisors (6097157).

12663243 is an equidigital number, since it uses as much as digits as its factorization.

12663243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469018 (or 469012 counting only the distinct ones).

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

The square root of 12663243 is about 3558.5450678613. The cubic root of 12663243 is about 233.0853512822.

Adding to 12663243 its reverse (34236621), we get a palindrome (46899864).

The spelling of 12663243 in words is "twelve million, six hundred sixty-three thousand, two hundred forty-three".