804204589 has 2 divisors, whose sum is σ = 804204590. Its totient is φ = 804204588.

The previous prime is 804204581. The next prime is 804204671. The reversal of 804204589 is 985402408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770506564 + 33698025 = 27758^2 + 5805^2 .

It is a cyclic number.

It is not a de Polignac number, because 804204589 - 2³ = 804204581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804204581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402102294 + 402102295.

It is an arithmetic number, because the mean of its divisors is an integer number (402102295).

Almost surely, 2^804204589 is an apocalyptic number.

It is an amenable number.

804204589 is a deficient number, since it is larger than the sum of its proper divisors (1).

804204589 is an equidigital number, since it uses as much as digits as its factorization.

804204589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 804204589 is about 28358.5011768958. The cubic root of 804204589 is about 929.9412569363.

The spelling of 804204589 in words is "eight hundred four million, two hundred four thousand, five hundred eighty-nine".