12704089 has 2 divisors, whose sum is σ = 12704090. Its totient is φ = 12704088.

The previous prime is 12704023. The next prime is 12704093. The reversal of 12704089 is 98040721.

12704089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11833600 + 870489 = 3440^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 12704089 - 2⁹ = 12703577 is a prime.

It is a super-2 number, since 2×12704089² = 322787754639842, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12704089.

It is not a weakly prime, because it can be changed into another prime (12704009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6352044 + 6352045.

It is an arithmetic number, because the mean of its divisors is an integer number (6352045).

Almost surely, 2^12704089 is an apocalyptic number.

It is an amenable number.

12704089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12704089 is an equidigital number, since it uses as much as digits as its factorization.

12704089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12704089 is about 3564.2795906045. The cubic root of 12704089 is about 233.3356922664.

The spelling of 12704089 in words is "twelve million, seven hundred four thousand, eighty-nine".