804289 has 4 divisors (see below), whose sum is σ = 846640. Its totient is φ = 761940.

The previous prime is 804283. The next prime is 804313. The reversal of 804289 is 982408.

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 a cyclic number.

It is not a de Polignac number, because 804289 - 2³ = 804281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 804289.

It is not an unprimeable number, because it can be changed into a prime (804281) 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, 21147 + ... + 21184.

It is an arithmetic number, because the mean of its divisors is an integer number (211660).

2⁸⁰⁴²⁸⁹ is an apocalyptic number.

It is an amenable number.

804289 is a deficient number, since it is larger than the sum of its proper divisors (42351).

804289 is a wasteful number, since it uses less digits than its factorization.

804289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42350.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 804289 is about 896.8216099091. The cubic root of 804289 is about 92.9973791993.

The spelling of 804289 in words is "eight hundred four thousand, two hundred eighty-nine".