5624421 has 16 divisors (see below), whose sum is σ = 8382528. Its totient is φ = 3324800.

The previous prime is 5624417. The next prime is 5624441. The reversal of 5624421 is 1244265.

It is a cyclic number.

It is not a de Polignac number, because 5624421 - 2² = 5624417 is a prime.

It is a super-2 number, since 2×5624421² = 63268223170482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5624391 and 5624400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5624401) 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, 726 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (523908).

Almost surely, 2^5624421 is an apocalyptic number.

It is an amenable number.

5624421 is a deficient number, since it is larger than the sum of its proper divisors (2758107).

5624421 is a wasteful number, since it uses less digits than its factorization.

5624421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212.

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

The square root of 5624421 is about 2371.5861780673. The cubic root of 5624421 is about 177.8385629671.

Adding to 5624421 its reverse (1244265), we get a palindrome (6868686).

It can be divided in two parts, 56244 and 21, that added together give a palindrome (56265).

The spelling of 5624421 in words is "five million, six hundred twenty-four thousand, four hundred twenty-one".