12778763 has 8 divisors (see below), whose sum is σ = 13381200. Its totient is φ = 12187168.

The previous prime is 12778741. The next prime is 12778769. The reversal of 12778763 is 36787721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12778763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12778763.

It is not an unprimeable number, because it can be changed into a prime (12778769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (1672650).

Almost surely, 2^12778763 is an apocalyptic number.

12778763 is a deficient number, since it is larger than the sum of its proper divisors (602437).

12778763 is an equidigital number, since it uses as much as digits as its factorization.

12778763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421.

The product of its digits is 98784, while the sum is 41.

The square root of 12778763 is about 3574.7395709338. The cubic root of 12778763 is about 233.7919779338.

The spelling of 12778763 in words is "twelve million, seven hundred seventy-eight thousand, seven hundred sixty-three".