804394 has 4 divisors (see below), whose sum is σ = 1206594. Its totient is φ = 402196.

The previous prime is 804383. The next prime is 804409. The reversal of 804394 is 493408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 748225 + 56169 = 865^2 + 237^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201097 + ... + 201100.

2⁸⁰⁴³⁹⁴ is an apocalyptic number.

804394 is a deficient number, since it is larger than the sum of its proper divisors (402200).

804394 is a wasteful number, since it uses less digits than its factorization.

804394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402199.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 804394 is about 896.8801480688. The cubic root of 804394 is about 93.0014259619.

The spelling of 804394 in words is "eight hundred four thousand, three hundred ninety-four".