8857289 has 24 divisors (see below), whose sum is σ = 11294208. Its totient is φ = 6914880.

The previous prime is 8857283. The next prime is 8857301. The reversal of 8857289 is 9827588.

It is not a de Polignac number, because 8857289 - 2⁴ = 8857273 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8857283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285704 + ... + 285734.

It is an arithmetic number, because the mean of its divisors is an integer number (470592).

Almost surely, 2^8857289 is an apocalyptic number.

It is an amenable number.

8857289 is a deficient number, since it is larger than the sum of its proper divisors (2436919).

8857289 is an frugal number, since it uses more digits than its factorization.

8857289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 55 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 8857289 is about 2976.1197892558. The cubic root of 8857289 is about 206.9030717680.

Subtracting 8857289 from its reverse (9827588), we obtain a cube (970299 = 99³).

The spelling of 8857289 in words is "eight million, eight hundred fifty-seven thousand, two hundred eighty-nine".