844622 has 4 divisors (see below), whose sum is σ = 1266936. Its totient is φ = 422310.

The previous prime is 844621. The next prime is 844631. The reversal of 844622 is 226448.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 844591 and 844600.

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 844622.

It is not an unprimeable number, because it can be changed into a prime (844621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211154 + ... + 211157.

It is an arithmetic number, because the mean of its divisors is an integer number (316734).

2⁸⁴⁴⁶²² is an apocalyptic number.

844622 is a deficient number, since it is larger than the sum of its proper divisors (422314).

844622 is a wasteful number, since it uses less digits than its factorization.

844622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422313.

The product of its digits is 3072, while the sum is 26.

The square root of 844622 is about 919.0331876488. The cubic root of 844622 is about 94.5266201612.

The spelling of 844622 in words is "eight hundred forty-four thousand, six hundred twenty-two".