43412689 has 2 divisors, whose sum is σ = 43412690. Its totient is φ = 43412688.

The previous prime is 43412683. The next prime is 43412711. The reversal of 43412689 is 98621434.

43412689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42185025 + 1227664 = 6495^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 43412689 - 2⁵ = 43412657 is a prime.

It is not a weakly prime, because it can be changed into another prime (43412683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21706344 + 21706345.

It is an arithmetic number, because the mean of its divisors is an integer number (21706345).

Almost surely, 2^43412689 is an apocalyptic number.

It is an amenable number.

43412689 is a deficient number, since it is larger than the sum of its proper divisors (1).

43412689 is an equidigital number, since it uses as much as digits as its factorization.

43412689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 43412689 is about 6588.8306246253. The cubic root of 43412689 is about 351.4570254086.

The spelling of 43412689 in words is "forty-three million, four hundred twelve thousand, six hundred eighty-nine".