12762643 has 4 divisors (see below), whose sum is σ = 12790440. Its totient is φ = 12734848.

The previous prime is 12762613. The next prime is 12762649. The reversal of 12762643 is 34626721.

12762643 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12762643 - 2⁹ = 12762131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12762649) 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, 13198 + ... + 14131.

It is an arithmetic number, because the mean of its divisors is an integer number (3197610).

Almost surely, 2^12762643 is an apocalyptic number.

12762643 is a deficient number, since it is larger than the sum of its proper divisors (27797).

12762643 is an equidigital number, since it uses as much as digits as its factorization.

12762643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27796.

The product of its digits is 12096, while the sum is 31.

The square root of 12762643 is about 3572.4841497199. The cubic root of 12762643 is about 233.6936295385.

The spelling of 12762643 in words is "twelve million, seven hundred sixty-two thousand, six hundred forty-three".