4352321 has 4 divisors (see below), whose sum is σ = 4374612. Its totient is φ = 4330032.

The previous prime is 4352279. The next prime is 4352377. The reversal of 4352321 is 1232534.

It is a happy number.

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 4145296 + 207025 = 2036^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 4352321 - 2¹⁰ = 4351297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4352293 and 4352302.

It is not an unprimeable number, because it can be changed into a prime (4352921) 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, 10850 + ... + 11243.

It is an arithmetic number, because the mean of its divisors is an integer number (1093653).

Almost surely, 2^4352321 is an apocalyptic number.

It is an amenable number.

4352321 is a deficient number, since it is larger than the sum of its proper divisors (22291).

4352321 is a wasteful number, since it uses less digits than its factorization.

4352321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22290.

The product of its digits is 720, while the sum is 20.

The square root of 4352321 is about 2086.2217044217. The cubic root of 4352321 is about 163.2702181057.

Adding to 4352321 its reverse (1232534), we get a palindrome (5584855).

The spelling of 4352321 in words is "four million, three hundred fifty-two thousand, three hundred twenty-one".