8865321 has 4 divisors (see below), whose sum is σ = 11820432. Its totient is φ = 5910212.

The previous prime is 8865317. The next prime is 8865331. The reversal of 8865321 is 1235688.

It is a happy number.

8865321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8865321 - 2² = 8865317 is a prime.

8865321 is a lucky number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8865331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477551 + ... + 1477556.

It is an arithmetic number, because the mean of its divisors is an integer number (2955108).

Almost surely, 2^8865321 is an apocalyptic number.

It is an amenable number.

8865321 is a deficient number, since it is larger than the sum of its proper divisors (2955111).

8865321 is a wasteful number, since it uses less digits than its factorization.

8865321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955110.

The product of its digits is 11520, while the sum is 33.

The square root of 8865321 is about 2977.4688915251. The cubic root of 8865321 is about 206.9655944124.

The spelling of 8865321 in words is "eight million, eight hundred sixty-five thousand, three hundred twenty-one".