12689043 has 8 divisors (see below), whose sum is σ = 16941456. Its totient is φ = 8448000.

The previous prime is 12689029. The next prime is 12689051. The reversal of 12689043 is 34098621.

12689043 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12689043 - 2⁹ = 12688531 is a prime.

It is a super-2 number, since 2×12689043² = 322023624511698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12688995 and 12689013.

It is not an unprimeable number, because it can be changed into a prime (12689003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243 + ... + 5043.

It is an arithmetic number, because the mean of its divisors is an integer number (2117682).

Almost surely, 2^12689043 is an apocalyptic number.

12689043 is a deficient number, since it is larger than the sum of its proper divisors (4252413).

12689043 is an equidigital number, since it uses as much as digits as its factorization.

12689043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12689043 is about 3562.1683003474. The cubic root of 12689043 is about 233.2435393718.

The spelling of 12689043 in words is "twelve million, six hundred eighty-nine thousand, forty-three".