804512 has 24 divisors (see below), whose sum is σ = 1636992. Its totient is φ = 388800.

The previous prime is 804511. The next prime is 804521. The reversal of 804512 is 215408.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (804511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (68208).

2⁸⁰⁴⁵¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818496).

804512 is an abundant number, since it is smaller than the sum of its proper divisors (832480).

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

804512 is a wasteful number, since it uses less digits than its factorization.

804512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 804512 is about 896.9459292510. The cubic root of 804512 is about 93.0059733320.

The spelling of 804512 in words is "eight hundred four thousand, five hundred twelve".