12863783 has 4 divisors (see below), whose sum is σ = 12871200. Its totient is φ = 12856368.

The previous prime is 12863777. The next prime is 12863801. The reversal of 12863783 is 38736821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12863783 - 2⁸ = 12863527 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 (12863723) 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, 443 + ... + 5091.

It is an arithmetic number, because the mean of its divisors is an integer number (3217800).

Almost surely, 2^12863783 is an apocalyptic number.

12863783 is a deficient number, since it is larger than the sum of its proper divisors (7417).

12863783 is an equidigital number, since it uses as much as digits as its factorization.

12863783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7416.

The product of its digits is 48384, while the sum is 38.

The square root of 12863783 is about 3586.6116321676. The cubic root of 12863783 is about 234.3093225870.

The spelling of 12863783 in words is "twelve million, eight hundred sixty-three thousand, seven hundred eighty-three".