9008865 has 24 divisors (see below), whose sum is σ = 15769728. Its totient is φ = 4757280.

The previous prime is 9008863. The next prime is 9008873. The reversal of 9008865 is 5688009.

9008865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9008865 - 2¹ = 9008863 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9008863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3880 + ... + 5750.

It is an arithmetic number, because the mean of its divisors is an integer number (657072).

Almost surely, 2^9008865 is an apocalyptic number.

It is an amenable number.

9008865 is a deficient number, since it is larger than the sum of its proper divisors (6760863).

9008865 is a wasteful number, since it uses less digits than its factorization.

9008865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 9008865 is about 3001.4771363447. The cubic root of 9008865 is about 208.0766559791.

The spelling of 9008865 in words is "nine million, eight thousand, eight hundred sixty-five".