844812 has 36 divisors (see below), whose sum is σ = 2207296. Its totient is φ = 272160.

The previous prime is 844777. The next prime is 844841. The reversal of 844812 is 218448.

It is a tau number, because it is divible by the number of its divisors (36).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 844812.

It is an unprimeable number.

844812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 738 + ... + 1494.

2⁸⁴⁴⁸¹² 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 844812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103648).

844812 is an abundant number, since it is smaller than the sum of its proper divisors (1362484).

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

844812 is a wasteful number, since it uses less digits than its factorization.

844812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 793 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 844812 is about 919.1365513350. The cubic root of 844812 is about 94.5337076359.

The spelling of 844812 in words is "eight hundred forty-four thousand, eight hundred twelve".