9865088 has 32 divisors (see below), whose sum is σ = 20193960. Its totient is φ = 4796928.

The previous prime is 9865087. The next prime is 9865109. The reversal of 9865088 is 8805689.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×9865088² = 194639922495488, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3695 + ... + 5777.

Almost surely, 2^9865088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9865088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10096980).

9865088 is an abundant number, since it is smaller than the sum of its proper divisors (10328872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9865088 is a wasteful number, since it uses less digits than its factorization.

9865088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2122 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 9865088 is about 3140.8737637798. The cubic root of 9865088 is about 214.4702153626.

The spelling of 9865088 in words is "nine million, eight hundred sixty-five thousand, eighty-eight".