8193321 has 6 divisors (see below), whose sum is σ = 11834810. Its totient is φ = 5462208.

The previous prime is 8193319. The next prime is 8193343. The reversal of 8193321 is 1233918.

It can be written as a sum of positive squares in only one way, i.e., 7901721 + 291600 = 2811^2 + 540^2 .

It is not a de Polignac number, because 8193321 - 2¹ = 8193319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8191321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455176 + ... + 455193.

Almost surely, 2^8193321 is an apocalyptic number.

It is an amenable number.

8193321 is a deficient number, since it is larger than the sum of its proper divisors (3641489).

8193321 is a wasteful number, since it uses less digits than its factorization.

8193321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910375 (or 910372 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 8193321 is about 2862.3977711003. The cubic root of 8193321 is about 201.5982030499.

The spelling of 8193321 in words is "eight million, one hundred ninety-three thousand, three hundred twenty-one".