6713321 has 2 divisors, whose sum is σ = 6713322. Its totient is φ = 6713320.

The previous prime is 6713279. The next prime is 6713323. The reversal of 6713321 is 1233176.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5784025 + 929296 = 2405^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 6713321 - 2⁶ = 6713257 is a prime.

Together with 6713323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6713323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3356660 + 3356661.

It is an arithmetic number, because the mean of its divisors is an integer number (3356661).

Almost surely, 2^6713321 is an apocalyptic number.

It is an amenable number.

6713321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6713321 is an equidigital number, since it uses as much as digits as its factorization.

6713321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 23.

The square root of 6713321 is about 2591.0077190159. The cubic root of 6713321 is about 188.6452196830.

Adding to 6713321 its reverse (1233176), we get a palindrome (7946497).

The spelling of 6713321 in words is "six million, seven hundred thirteen thousand, three hundred twenty-one".