5644423 has 4 divisors (see below), whose sum is σ = 5651208. Its totient is φ = 5637640.

The previous prime is 5644421. The next prime is 5644439. The reversal of 5644423 is 3244465.

5644423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 5644423 - 2¹ = 5644421 is a prime.

It is a super-2 number, since 2×5644423² = 63719022005858, which contains 22 as substring.

It is a Duffinian number.

5644423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5644391 and 5644400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1936 + ... + 3877.

It is an arithmetic number, because the mean of its divisors is an integer number (1412802).

Almost surely, 2^5644423 is an apocalyptic number.

5644423 is a deficient number, since it is larger than the sum of its proper divisors (6785).

5644423 is an equidigital number, since it uses as much as digits as its factorization.

5644423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784.

The product of its digits is 11520, while the sum is 28.

The square root of 5644423 is about 2375.7994443976. The cubic root of 5644423 is about 178.0491279620.

Adding to 5644423 its reverse (3244465), we get a palindrome (8888888).

The spelling of 5644423 in words is "five million, six hundred forty-four thousand, four hundred twenty-three".