4456321 has 3 divisors (see below), whose sum is σ = 4458433. Its totient is φ = 4454210.

The previous prime is 4456301. The next prime is 4456327. The reversal of 4456321 is 1236544.

The square root of 4456321 is 2111.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4456321 - 2¹¹ = 4454273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4456327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1056 + ... + 3166.

Almost surely, 2^4456321 is an apocalyptic number.

4456321 is the 2111-st square number.

4456321 is the 1056-th centered octagonal number.

It is an amenable number.

4456321 is a deficient number, since it is larger than the sum of its proper divisors (2112).

4456321 is an frugal number, since it uses more digits than its factorization.

4456321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222 (or 2111 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The cubic root of 4456321 is about 164.5604585560.

Multiplying 4456321 by its sum of digits (25), we get a square (111408025 = 10555²).

Multiplying 4456321 by its reverse (1236544), we get a square (5510436994624 = 2347432²).

It can be divided in two parts, 44 and 56321, that added together give a palindrome (56365).

The spelling of 4456321 in words is "four million, four hundred fifty-six thousand, three hundred twenty-one".