4944221 has 4 divisors (see below), whose sum is σ = 5103744. Its totient is φ = 4784700.

The previous prime is 4944209. The next prime is 4944223. The reversal of 4944221 is 1224494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4944221 - 2⁶ = 4944157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4944223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79715 + ... + 79776.

It is an arithmetic number, because the mean of its divisors is an integer number (1275936).

Almost surely, 2^4944221 is an apocalyptic number.

It is an amenable number.

4944221 is a deficient number, since it is larger than the sum of its proper divisors (159523).

4944221 is a wasteful number, since it uses less digits than its factorization.

4944221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159522.

The product of its digits is 2304, while the sum is 26.

The square root of 4944221 is about 2223.5604331792. The cubic root of 4944221 is about 170.3593436952.

The spelling of 4944221 in words is "four million, nine hundred forty-four thousand, two hundred twenty-one".