804912 has 40 divisors (see below), whose sum is σ = 2135280. Its totient is φ = 261120.

The previous prime is 804901. The next prime is 804913. The reversal of 804912 is 219408.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (804913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1764 + ... + 2172.

It is an arithmetic number, because the mean of its divisors is an integer number (53382).

2⁸⁰⁴⁹¹² is an apocalyptic number.

804912 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067640).

804912 is an abundant number, since it is smaller than the sum of its proper divisors (1330368).

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

804912 is a wasteful number, since it uses less digits than its factorization.

804912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 804912 is about 897.1688804233. The cubic root of 804912 is about 93.0213848383.

The spelling of 804912 in words is "eight hundred four thousand, nine hundred twelve".