12688043 has 4 divisors (see below), whose sum is σ = 12696000. Its totient is φ = 12680088.

The previous prime is 12688037. The next prime is 12688079. The reversal of 12688043 is 34088621.

12688043 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12688043 - 2¹⁰ = 12687019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12688033) 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, 668 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (3174000).

Almost surely, 2^12688043 is an apocalyptic number.

12688043 is a deficient number, since it is larger than the sum of its proper divisors (7957).

12688043 is an equidigital number, since it uses as much as digits as its factorization.

12688043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7956.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12688043 is about 3562.0279336356. The cubic root of 12688043 is about 233.2374120469.

The spelling of 12688043 in words is "twelve million, six hundred eighty-eight thousand, forty-three".