8313321 has 8 divisors (see below), whose sum is σ = 11186560. Its totient is φ = 5491152.

The previous prime is 8313269. The next prime is 8313353. The reversal of 8313321 is 1233138.

It is a happy number.

8313321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8313321 - 2⁶ = 8313257 is a prime.

It is a super-2 number, since 2×8313321² = 138222612098082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8311321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12385 + ... + 13038.

It is an arithmetic number, because the mean of its divisors is an integer number (1398320).

Almost surely, 2^8313321 is an apocalyptic number.

It is an amenable number.

8313321 is a deficient number, since it is larger than the sum of its proper divisors (2873239).

8313321 is a wasteful number, since it uses less digits than its factorization.

8313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25535.

The product of its digits is 432, while the sum is 21.

The square root of 8313321 is about 2883.2830246093. The cubic root of 8313321 is about 202.5776443601.

Adding to 8313321 its reverse (1233138), we get a palindrome (9546459).

The spelling of 8313321 in words is "eight million, three hundred thirteen thousand, three hundred twenty-one".