12644283 has 4 divisors (see below), whose sum is σ = 16859048. Its totient is φ = 8429520.

The previous prime is 12644267. The next prime is 12644293. The reversal of 12644283 is 38244621.

12644283 is digitally balanced in base 3, 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.

It is not a de Polignac number, because 12644283 - 2⁴ = 12644267 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 12644283.

It is not an unprimeable number, because it can be changed into a prime (12644213) 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, 2107378 + ... + 2107383.

It is an arithmetic number, because the mean of its divisors is an integer number (4214762).

Almost surely, 2^12644283 is an apocalyptic number.

12644283 is a deficient number, since it is larger than the sum of its proper divisors (4214765).

12644283 is an equidigital number, since it uses as much as digits as its factorization.

12644283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214764.

The product of its digits is 9216, while the sum is 30.

The square root of 12644283 is about 3555.8800598445. The cubic root of 12644283 is about 232.9689644111.

The spelling of 12644283 in words is "twelve million, six hundred forty-four thousand, two hundred eighty-three".