944221 has 4 divisors (see below), whose sum is σ = 949212. Its totient is φ = 939232.

The previous prime is 944191. The next prime is 944233. The reversal of 944221 is 122449.

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

It can be written as a sum of positive squares in 2 ways, for example, as 881721 + 62500 = 939^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 944221 - 2¹³ = 936029 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 944192 and 944201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (944261) 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 in 3 ways as a sum of consecutive naturals, for example, 2200 + ... + 2593.

It is an arithmetic number, because the mean of its divisors is an integer number (237303).

2⁹⁴⁴²²¹ is an apocalyptic number.

It is an amenable number.

944221 is a deficient number, since it is larger than the sum of its proper divisors (4991).

944221 is a wasteful number, since it uses less digits than its factorization.

944221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990.

The product of its digits is 576, while the sum is 22.

The square root of 944221 is about 971.7103477889. The cubic root of 944221 is about 98.1050172299.

The spelling of 944221 in words is "nine hundred forty-four thousand, two hundred twenty-one".