9865760 has 48 divisors (see below), whose sum is σ = 23501016. Its totient is φ = 3913728.

The previous prime is 9865753. The next prime is 9865777. The reversal of 9865760 is 675689.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7639696 + 2226064 = 2764^2 + 1492^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31364 + ... + 31676.

Almost surely, 2^9865760 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 9865760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11750508).

9865760 is an abundant number, since it is smaller than the sum of its proper divisors (13635256).

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

9865760 is a wasteful number, since it uses less digits than its factorization.

9865760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 9865760 is about 3140.9807385592. The cubic root of 9865760 is about 214.4750850847.

The spelling of 9865760 in words is "nine million, eight hundred sixty-five thousand, seven hundred sixty".