844764 has 48 divisors (see below), whose sum is σ = 2159136. Its totient is φ = 256000.

The previous prime is 844763. The next prime is 844769. The reversal of 844764 is 467448.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 844764.

It is not an unprimeable number, because it can be changed into a prime (844763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8314 + ... + 8414.

It is an arithmetic number, because the mean of its divisors is an integer number (44982).

2⁸⁴⁴⁷⁶⁴ 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 844764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079568).

844764 is an abundant number, since it is smaller than the sum of its proper divisors (1314372).

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

844764 is a wasteful number, since it uses less digits than its factorization.

844764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 164 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 844764 is about 919.1104395012. The cubic root of 844764 is about 94.5319172163.

The spelling of 844764 in words is "eight hundred forty-four thousand, seven hundred sixty-four".