8683321 has 2 divisors, whose sum is σ = 8683322. Its totient is φ = 8683320.

The previous prime is 8683319. The next prime is 8683327. The reversal of 8683321 is 1233868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7155625 + 1527696 = 2675^2 + 1236^2 .

It is a cyclic number.

It is not a de Polignac number, because 8683321 - 2¹ = 8683319 is a prime.

Together with 8683319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8683327) 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 as a sum of consecutive naturals, namely, 4341660 + 4341661.

It is an arithmetic number, because the mean of its divisors is an integer number (4341661).

Almost surely, 2^8683321 is an apocalyptic number.

It is an amenable number.

8683321 is a deficient number, since it is larger than the sum of its proper divisors (1).

8683321 is an equidigital number, since it uses as much as digits as its factorization.

8683321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 8683321 is about 2946.7475290564. The cubic root of 8683321 is about 205.5394950956.

The spelling of 8683321 in words is "eight million, six hundred eighty-three thousand, three hundred twenty-one".