844920 has 48 divisors (see below), whose sum is σ = 2747160. Its totient is φ = 225216.

The previous prime is 844913. The next prime is 844927. The reversal of 844920 is 29448.

844920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (844913) and next prime (844927).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 814 + ... + 1533.

2⁸⁴⁴⁹²⁰ is an apocalyptic number.

It is an amenable number.

844920 is an abundant number, since it is smaller than the sum of its proper divisors (1902240).

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

844920 is a wasteful number, since it uses less digits than its factorization.

844920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 2357 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 844920 is about 919.1953002491. The cubic root of 844920 is about 94.5377358321.

It can be divided in two parts, 844 and 920, that added together give a square (1764 = 42²).

The spelling of 844920 in words is "eight hundred forty-four thousand, nine hundred twenty".