8659881 has 12 divisors (see below), whose sum is σ = 12912640. Its totient is φ = 5586840.

The previous prime is 8659873. The next prime is 8659909. The reversal of 8659881 is 1889568.

8659881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8659881 - 2³ = 8659873 is a prime.

It is a super-2 number, since 2×8659881² = 149987077868322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8659811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15241 + ... + 15798.

Almost surely, 2^8659881 is an apocalyptic number.

It is an amenable number.

8659881 is a deficient number, since it is larger than the sum of its proper divisors (4252759).

8659881 is a wasteful number, since it uses less digits than its factorization.

8659881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31076 (or 31073 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 8659881 is about 2942.7675749199. The cubic root of 8659881 is about 205.3543820718.

The spelling of 8659881 in words is "eight million, six hundred fifty-nine thousand, eight hundred eighty-one".