804589 has 2 divisors, whose sum is σ = 804590. Its totient is φ = 804588.

The previous prime is 804581. The next prime is 804607. The reversal of 804589 is 985408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 751689 + 52900 = 867^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 804589 - 2³ = 804581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402294 + 402295.

It is an arithmetic number, because the mean of its divisors is an integer number (402295).

2⁸⁰⁴⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

804589 is a deficient number, since it is larger than the sum of its proper divisors (1).

804589 is an equidigital number, since it uses as much as digits as its factorization.

804589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 804589 is about 896.9888516587. The cubic root of 804589 is about 93.0089404439.

The spelling of 804589 in words is "eight hundred four thousand, five hundred eighty-nine".