6493321 has 2 divisors, whose sum is σ = 6493322. Its totient is φ = 6493320.

The previous prime is 6493309. The next prime is 6493343. The reversal of 6493321 is 1233946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6175225 + 318096 = 2485^2 + 564^2 .

It is a cyclic number.

It is not a de Polignac number, because 6493321 - 2⁹ = 6492809 is a prime.

It is a Chen prime.

6493321 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6493321.

It is not a weakly prime, because it can be changed into another prime (6493381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3246660 + 3246661.

It is an arithmetic number, because the mean of its divisors is an integer number (3246661).

Almost surely, 2^6493321 is an apocalyptic number.

It is an amenable number.

6493321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6493321 is an equidigital number, since it uses as much as digits as its factorization.

6493321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 6493321 is about 2548.1995604740. The cubic root of 6493321 is about 186.5616142882.

The spelling of 6493321 in words is "six million, four hundred ninety-three thousand, three hundred twenty-one".