804071 has 4 divisors (see below), whose sum is σ = 805872. Its totient is φ = 802272.

The previous prime is 804059. The next prime is 804073. The reversal of 804071 is 170408.

It is a happy number.

804071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 804071 - 2⁶ = 804007 is a prime.

It is a Duffinian 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 804071.

It is not an unprimeable number, because it can be changed into a prime (804073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335 + ... + 1311.

It is an arithmetic number, because the mean of its divisors is an integer number (201468).

2⁸⁰⁴⁰⁷¹ is an apocalyptic number.

804071 is a deficient number, since it is larger than the sum of its proper divisors (1801).

804071 is an equidigital number, since it uses as much as digits as its factorization.

804071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 804071 is about 896.7000613360. The cubic root of 804071 is about 92.9889762245.

Adding to 804071 its reverse (170408), we get a palindrome (974479).

It can be divided in two parts, 80407 and 1, that added together give a palindrome (80408).

The spelling of 804071 in words is "eight hundred four thousand, seventy-one".