804709 has 2 divisors, whose sum is σ = 804710. Its totient is φ = 804708.

The previous prime is 804703. The next prime is 804743. The reversal of 804709 is 907408.

804709 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., 804609 + 100 = 897^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 804709 - 2⁷ = 804581 is a prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402354 + 402355.

It is an arithmetic number, because the mean of its divisors is an integer number (402355).

2⁸⁰⁴⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

804709 is a deficient number, since it is larger than the sum of its proper divisors (1).

804709 is an equidigital number, since it uses as much as digits as its factorization.

804709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 804709 is about 897.0557396283. The cubic root of 804709 is about 93.0135641371.

The spelling of 804709 in words is "eight hundred four thousand, seven hundred nine".