12783863 has 2 divisors, whose sum is σ = 12783864. Its totient is φ = 12783862.

The previous prime is 12783853. The next prime is 12783877. The reversal of 12783863 is 36838721.

It is a happy number.

12783863 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 an emirp because it is prime and its reverse (36838721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12783863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12783853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6391931 + 6391932.

It is an arithmetic number, because the mean of its divisors is an integer number (6391932).

Almost surely, 2^12783863 is an apocalyptic number.

12783863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12783863 is an equidigital number, since it uses as much as digits as its factorization.

12783863 is an evil number, because the sum of its binary digits is even.

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

The square root of 12783863 is about 3575.4528384528. The cubic root of 12783863 is about 233.8230758969.

The spelling of 12783863 in words is "twelve million, seven hundred eighty-three thousand, eight hundred sixty-three".