5223421 has 4 divisors (see below), whose sum is σ = 5969632. Its totient is φ = 4477212.

The previous prime is 5223409. The next prime is 5223431. The reversal of 5223421 is 1243225.

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 5223421 - 2⁷ = 5223293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5223431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373095 + ... + 373108.

It is an arithmetic number, because the mean of its divisors is an integer number (1492408).

Almost surely, 2^5223421 is an apocalyptic number.

It is an amenable number.

5223421 is a deficient number, since it is larger than the sum of its proper divisors (746211).

5223421 is an equidigital number, since it uses as much as digits as its factorization.

5223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746210.

The product of its digits is 480, while the sum is 19.

The square root of 5223421 is about 2285.4804746486. The cubic root of 5223421 is about 173.5075364847.

Adding to 5223421 its reverse (1243225), we get a palindrome (6466646).

The spelling of 5223421 in words is "five million, two hundred twenty-three thousand, four hundred twenty-one".