8679321 has 18 divisors (see below), whose sum is σ = 14584362. Its totient is φ = 4959360.

The previous prime is 8679311. The next prime is 8679347. The reversal of 8679321 is 1239768.

8679321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8643600 + 35721 = 2940^2 + 189^2 .

It is not a de Polignac number, because 8679321 - 2⁵ = 8679289 is a prime.

It is a super-2 number, since 2×8679321² = 150661226042082, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8679311) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9400 + ... + 10281.

Almost surely, 2^8679321 is an apocalyptic number.

It is an amenable number.

8679321 is a deficient number, since it is larger than the sum of its proper divisors (5905041).

8679321 is a wasteful number, since it uses less digits than its factorization.

8679321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19701 (or 19691 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 8679321 is about 2946.0687364690. The cubic root of 8679321 is about 205.5079294363.

The spelling of 8679321 in words is "eight million, six hundred seventy-nine thousand, three hundred twenty-one".