804500 has 24 divisors (see below), whose sum is σ = 1758120. Its totient is φ = 321600.

The previous prime is 804497. The next prime is 804511. The reversal of 804500 is 5408.

It can be written as a sum of positive squares in 4 ways, for example, as 8836 + 795664 = 94^2 + 892^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305 + ... + 1304.

It is an arithmetic number, because the mean of its divisors is an integer number (73255).

2⁸⁰⁴⁵⁰⁰ is an apocalyptic number.

It is an amenable number.

804500 is an abundant number, since it is smaller than the sum of its proper divisors (953620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804500 is a wasteful number, since it uses less digits than its factorization.

804500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 804500 is about 896.9392398596. The cubic root of 804500 is about 93.0055109079.

Adding to 804500 its reverse (5408), we get a palindrome (809908).

It can be divided in two parts, 80 and 4500, that multiplied together give a square (360000 = 600²).

The spelling of 804500 in words is "eight hundred four thousand, five hundred".