12643763 has 8 divisors (see below), whose sum is σ = 14114496. Its totient is φ = 11226600.

The previous prime is 12643723. The next prime is 12643781. The reversal of 12643763 is 36734621.

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

It is not a de Polignac number, because 12643763 - 2¹² = 12639667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12643723) 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, 12893 + ... + 13838.

It is an arithmetic number, because the mean of its divisors is an integer number (1764312).

Almost surely, 2^12643763 is an apocalyptic number.

12643763 is a deficient number, since it is larger than the sum of its proper divisors (1470733).

12643763 is a wasteful number, since it uses less digits than its factorization.

12643763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26785.

The product of its digits is 18144, while the sum is 32.

The square root of 12643763 is about 3555.8069407660. The cubic root of 12643763 is about 232.9657707274.

The spelling of 12643763 in words is "twelve million, six hundred forty-three thousand, seven hundred sixty-three".