5644221 has 16 divisors (see below), whose sum is σ = 8693568. Its totient is φ = 3219200.

The previous prime is 5644217. The next prime is 5644259. The reversal of 5644221 is 1224465.

5644221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5644221 - 2² = 5644217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5644191 and 5644200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644021) 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, 4470 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (543348).

Almost surely, 2^5644221 is an apocalyptic number.

5644221 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5644221 is a deficient number, since it is larger than the sum of its proper divisors (3049347).

5644221 is a wasteful number, since it uses less digits than its factorization.

5644221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092.

The product of its digits is 1920, while the sum is 24.

The square root of 5644221 is about 2375.7569320114. The cubic root of 5644221 is about 178.0470039567.

Adding to 5644221 its reverse (1224465), we get a palindrome (6868686).

The spelling of 5644221 in words is "five million, six hundred forty-four thousand, two hundred twenty-one".