8613321 has 16 divisors (see below), whose sum is σ = 11854080. Its totient is φ = 5559680.

The previous prime is 8613299. The next prime is 8613323. The reversal of 8613321 is 1233168.

8613321 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8613321 - 2¹⁵ = 8580553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8613291 and 8613300.

It is not an unprimeable number, because it can be changed into a prime (8613323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29251 + ... + 29543.

It is an arithmetic number, because the mean of its divisors is an integer number (740880).

Almost surely, 2^8613321 is an apocalyptic number.

It is an amenable number.

8613321 is a deficient number, since it is larger than the sum of its proper divisors (3240759).

8613321 is a wasteful number, since it uses less digits than its factorization.

8613321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its digits is 864, while the sum is 24.

The square root of 8613321 is about 2934.8459925522. The cubic root of 8613321 is about 204.9856900580.

Adding to 8613321 its reverse (1233168), we get a palindrome (9846489).

The spelling of 8613321 in words is "eight million, six hundred thirteen thousand, three hundred twenty-one".