804312 has 24 divisors (see below), whose sum is σ = 2178540. Its totient is φ = 268080.

The previous prime is 804283. The next prime is 804313. The reversal of 804312 is 213408.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5514 + ... + 5657.

2⁸⁰⁴³¹² is an apocalyptic number.

It is an amenable number.

804312 is an abundant number, since it is smaller than the sum of its proper divisors (1374228).

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

804312 is a wasteful number, since it uses less digits than its factorization.

804312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183 (or 11176 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 804312 is about 896.8344328805. The cubic root of 804312 is about 92.9982656631.

The spelling of 804312 in words is "eight hundred four thousand, three hundred twelve".