804404 has 6 divisors (see below), whose sum is σ = 1407714. Its totient is φ = 402200.

The previous prime is 804383. The next prime is 804409. The reversal of 804404 is 404408.

It can be written as a sum of positive squares in only one way, i.e., 504100 + 300304 = 710^2 + 548^2 .

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 804404.

It is not an unprimeable number, because it can be changed into a prime (804409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100547 + ... + 100554.

It is an arithmetic number, because the mean of its divisors is an integer number (234619).

2⁸⁰⁴⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

804404 is a deficient number, since it is larger than the sum of its proper divisors (603310).

804404 is a wasteful number, since it uses less digits than its factorization.

804404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201105 (or 201103 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 804404 is about 896.8857229324. The cubic root of 804404 is about 93.0018113495.

The spelling of 804404 in words is "eight hundred four thousand, four hundred four".