9865089 has 12 divisors (see below), whose sum is σ = 15345876. Its totient is φ = 6070752.

The previous prime is 9865087. The next prime is 9865109. The reversal of 9865089 is 9805689.

It can be written as a sum of positive squares in 2 ways, for example, as 1912689 + 7952400 = 1383^2 + 2820^2 .

It is not a de Polignac number, because 9865089 - 2¹ = 9865087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9865081) 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, 42042 + ... + 42275.

It is an arithmetic number, because the mean of its divisors is an integer number (1278823).

Almost surely, 2^9865089 is an apocalyptic number.

It is an amenable number.

9865089 is a deficient number, since it is larger than the sum of its proper divisors (5480787).

9865089 is a wasteful number, since it uses less digits than its factorization.

9865089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84336 (or 84333 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 9865089 is about 3140.8739229711. The cubic root of 9865089 is about 214.4702226094.

The spelling of 9865089 in words is "nine million, eight hundred sixty-five thousand, eighty-nine".