804605 has 16 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 598080.

The previous prime is 804589. The next prime is 804607. The reversal of 804605 is 506408.

It is not a de Polignac number, because 804605 - 2⁴ = 804589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4406 + ... + 4584.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁸⁰⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

804605 is a deficient number, since it is larger than the sum of its proper divisors (232195).

804605 is a wasteful number, since it uses less digits than its factorization.

804605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 804605 is about 896.9977703428. The cubic root of 804605 is about 93.0095569629.

The spelling of 804605 in words is "eight hundred four thousand, six hundred five".