4324421 has 4 divisors (see below), whose sum is σ = 4373100. Its totient is φ = 4275744.

The previous prime is 4324417. The next prime is 4324433. The reversal of 4324421 is 1244234.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1809025 + 2515396 = 1345^2 + 1586^2 .

It is a cyclic number.

It is not a de Polignac number, because 4324421 - 2² = 4324417 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4324393 and 4324402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4324471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24206 + ... + 24383.

It is an arithmetic number, because the mean of its divisors is an integer number (1093275).

Almost surely, 2^4324421 is an apocalyptic number.

It is an amenable number.

4324421 is a deficient number, since it is larger than the sum of its proper divisors (48679).

4324421 is an equidigital number, since it uses as much as digits as its factorization.

4324421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48678.

The product of its digits is 768, while the sum is 20.

The square root of 4324421 is about 2079.5242244321. The cubic root of 4324421 is about 162.9205956482.

Adding to 4324421 its reverse (1244234), we get a palindrome (5568655).

The spelling of 4324421 in words is "four million, three hundred twenty-four thousand, four hundred twenty-one".