12663403 has 2 divisors, whose sum is σ = 12663404. Its totient is φ = 12663402.

The previous prime is 12663397. The next prime is 12663433. The reversal of 12663403 is 30436621.

12663403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12663403 is a prime.

It is not a weakly prime, because it can be changed into another prime (12663433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331701 + 6331702.

It is an arithmetic number, because the mean of its divisors is an integer number (6331702).

Almost surely, 2^12663403 is an apocalyptic number.

12663403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663403 is an equidigital number, since it uses as much as digits as its factorization.

12663403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 12663403 is about 3558.5675488882. The cubic root of 12663403 is about 233.0863329554.

The spelling of 12663403 in words is "twelve million, six hundred sixty-three thousand, four hundred three".