8816289 has 4 divisors (see below), whose sum is σ = 11755056. Its totient is φ = 5877524.

The previous prime is 8816281. The next prime is 8816303. The reversal of 8816289 is 9826188.

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 8816289 - 2³ = 8816281 is a prime.

It is a Curzon number.

8816289 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8816289.

It is not an unprimeable number, because it can be changed into a prime (8816281) 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, 1469379 + ... + 1469384.

It is an arithmetic number, because the mean of its divisors is an integer number (2938764).

Almost surely, 2^8816289 is an apocalyptic number.

It is an amenable number.

8816289 is a deficient number, since it is larger than the sum of its proper divisors (2938767).

8816289 is a wasteful number, since it uses less digits than its factorization.

8816289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938766.

The product of its digits is 55296, while the sum is 42.

The square root of 8816289 is about 2969.2236359022. The cubic root of 8816289 is about 206.5833295048.

The spelling of 8816289 in words is "eight million, eight hundred sixteen thousand, two hundred eighty-nine".