5221643 has 8 divisors (see below), whose sum is σ = 5983488. Its totient is φ = 4463784.

The previous prime is 5221639. The next prime is 5221649. The reversal of 5221643 is 3461225.

5221643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5221643 - 2² = 5221639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221649) 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 7 ways as a sum of consecutive naturals, for example, 2780 + ... + 4262.

It is an arithmetic number, because the mean of its divisors is an integer number (747936).

Almost surely, 2^5221643 is an apocalyptic number.

5221643 is a deficient number, since it is larger than the sum of its proper divisors (761845).

5221643 is a wasteful number, since it uses less digits than its factorization.

5221643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993.

The product of its digits is 1440, while the sum is 23.

The square root of 5221643 is about 2285.0914642526. The cubic root of 5221643 is about 173.4878475101.

Adding to 5221643 its reverse (3461225), we get a palindrome (8682868).

The spelling of 5221643 in words is "five million, two hundred twenty-one thousand, six hundred forty-three".