804189 has 4 divisors (see below), whose sum is σ = 1072256. Its totient is φ = 536124.

The previous prime is 804179. The next prime is 804191. The reversal of 804189 is 981408.

It is a happy number.

804189 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 Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 804189 - 2⁵ = 804157 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804119) 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, 134029 + ... + 134034.

It is an arithmetic number, because the mean of its divisors is an integer number (268064).

2⁸⁰⁴¹⁸⁹ is an apocalyptic number.

It is an amenable number.

804189 is a deficient number, since it is larger than the sum of its proper divisors (268067).

804189 is a wasteful number, since it uses less digits than its factorization.

804189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268066.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 804189 is about 896.7658557282. The cubic root of 804189 is about 92.9935248122.

The spelling of 804189 in words is "eight hundred four thousand, one hundred eighty-nine".