4409321 has 4 divisors (see below), whose sum is σ = 5039232. Its totient is φ = 3779412.

The previous prime is 4409303. The next prime is 4409333. The reversal of 4409321 is 1239044.

4409321 is digitally balanced in base 8, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4409321 - 2⁶ = 4409257 is a prime.

It is a super-2 number, since 2×4409321² = 38884223362082, which contains 22 as substring.

It is a Duffinian number.

4409321 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4409371) 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, 314945 + ... + 314958.

It is an arithmetic number, because the mean of its divisors is an integer number (1259808).

Almost surely, 2^4409321 is an apocalyptic number.

It is an amenable number.

4409321 is a deficient number, since it is larger than the sum of its proper divisors (629911).

4409321 is an equidigital number, since it uses as much as digits as its factorization.

4409321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629910.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4409321 is about 2099.8383271100. The cubic root of 4409321 is about 163.9798830173.

The spelling of 4409321 in words is "four million, four hundred nine thousand, three hundred twenty-one".