9865648 has 20 divisors (see below), whose sum is σ = 20585488. Its totient is φ = 4553280.

The previous prime is 9865637. The next prime is 9865651. The reversal of 9865648 is 8465689.

It is a super-3 number, since 3×9865648³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9865598 and 9865607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23508 + ... + 23923.

Almost surely, 2^9865648 is an apocalyptic number.

It is an amenable number.

9865648 is an abundant number, since it is smaller than the sum of its proper divisors (10719840).

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

9865648 is a wasteful number, since it uses less digits than its factorization.

9865648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47452 (or 47446 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 9865648 is about 3140.9629096823. The cubic root of 9865648 is about 214.4742734797.

The spelling of 9865648 in words is "nine million, eight hundred sixty-five thousand, six hundred forty-eight".