12863663 has 4 divisors (see below), whose sum is σ = 12991128. Its totient is φ = 12736200.

The previous prime is 12863657. The next prime is 12863671. The reversal of 12863663 is 36636821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12863663 - 2¹⁴ = 12847279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12863623) 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 in 3 ways as a sum of consecutive naturals, for example, 63581 + ... + 63782.

It is an arithmetic number, because the mean of its divisors is an integer number (3247782).

Almost surely, 2^12863663 is an apocalyptic number.

12863663 is a deficient number, since it is larger than the sum of its proper divisors (127465).

12863663 is a wasteful number, since it uses less digits than its factorization.

12863663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127464.

The product of its digits is 31104, while the sum is 35.

The square root of 12863663 is about 3586.5949032474. The cubic root of 12863663 is about 234.3085939987.

The spelling of 12863663 in words is "twelve million, eight hundred sixty-three thousand, six hundred sixty-three".