4492321 has 2 divisors, whose sum is σ = 4492322. Its totient is φ = 4492320.

The previous prime is 4492309. The next prime is 4492343. The reversal of 4492321 is 1232944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3111696 + 1380625 = 1764^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 4492321 - 2⁵ = 4492289 is a prime.

It is not a weakly prime, because it can be changed into another prime (4492391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246160 + 2246161.

It is an arithmetic number, because the mean of its divisors is an integer number (2246161).

Almost surely, 2^4492321 is an apocalyptic number.

It is an amenable number.

4492321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4492321 is an equidigital number, since it uses as much as digits as its factorization.

4492321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 4492321 is about 2119.5096130945. The cubic root of 4492321 is about 165.0023997202.

It can be divided in two parts, 44923 and 21, that added together give a palindrome (44944).

The spelling of 4492321 in words is "four million, four hundred ninety-two thousand, three hundred twenty-one".