4664321 has 2 divisors, whose sum is σ = 4664322. Its totient is φ = 4664320.

The previous prime is 4664311. The next prime is 4664323. The reversal of 4664321 is 1234664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3591025 + 1073296 = 1895^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 4664321 - 2¹⁰ = 4663297 is a prime.

It is a Sophie Germain prime.

Together with 4664323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4664323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332160 + 2332161.

It is an arithmetic number, because the mean of its divisors is an integer number (2332161).

Almost surely, 2^4664321 is an apocalyptic number.

It is an amenable number.

4664321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4664321 is an equidigital number, since it uses as much as digits as its factorization.

4664321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 4664321 is about 2159.7039148920. The cubic root of 4664321 is about 167.0819276019.

Adding to 4664321 its reverse (1234664), we get a palindrome (5898985).

It can be divided in two parts, 46643 and 21, that added together give a palindrome (46664).

The spelling of 4664321 in words is "four million, six hundred sixty-four thousand, three hundred twenty-one".