4128589 has 2 divisors, whose sum is σ = 4128590. Its totient is φ = 4128588.

The previous prime is 4128581. The next prime is 4128599. The reversal of 4128589 is 9858214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3348900 + 779689 = 1830^2 + 883^2 .

It is a cyclic number.

It is not a de Polignac number, because 4128589 - 2³ = 4128581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4128581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064294 + 2064295.

It is an arithmetic number, because the mean of its divisors is an integer number (2064295).

Almost surely, 2^4128589 is an apocalyptic number.

It is an amenable number.

4128589 is a deficient number, since it is larger than the sum of its proper divisors (1).

4128589 is an equidigital number, since it uses as much as digits as its factorization.

4128589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 37.

The square root of 4128589 is about 2031.8929597791. The cubic root of 4128589 is about 160.4232155045.

The spelling of 4128589 in words is "four million, one hundred twenty-eight thousand, five hundred eighty-nine".