804885 has 16 divisors (see below), whose sum is σ = 1344384. Its totient is φ = 410432.

The previous prime is 804877. The next prime is 804889. The reversal of 804885 is 588408.

It is a cyclic number.

It is not a de Polignac number, because 804885 - 2³ = 804877 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804885.

It is not an unprimeable number, because it can be changed into a prime (804889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (84024).

2⁸⁰⁴⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

804885 is a deficient number, since it is larger than the sum of its proper divisors (539499).

804885 is a wasteful number, since it uses less digits than its factorization.

804885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 804885 is about 897.1538329629. The cubic root of 804885 is about 93.0203447224.

The spelling of 804885 in words is "eight hundred four thousand, eight hundred eighty-five".