12663863 has 4 divisors (see below), whose sum is σ = 12675768. Its totient is φ = 12651960.

The previous prime is 12663829. The next prime is 12663877. The reversal of 12663863 is 36836621.

12663863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36836621 = 547 ⋅67343.

It is a cyclic number.

It is not a de Polignac number, because 12663863 - 2¹² = 12659767 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 (12663803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4181 + ... + 6542.

It is an arithmetic number, because the mean of its divisors is an integer number (3168942).

Almost surely, 2^12663863 is an apocalyptic number.

12663863 is a deficient number, since it is larger than the sum of its proper divisors (11905).

12663863 is a wasteful number, since it uses less digits than its factorization.

12663863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11904.

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

The square root of 12663863 is about 3558.6321810493. The cubic root of 12663863 is about 233.0891552198.

The spelling of 12663863 in words is "twelve million, six hundred sixty-three thousand, eight hundred sixty-three".