9865916 has 24 divisors (see below), whose sum is σ = 18915120. Its totient is φ = 4481792.

The previous prime is 9865907. The next prime is 9865927. The reversal of 9865916 is 6195689.

9865916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 530 + ... + 4473.

It is an arithmetic number, because the mean of its divisors is an integer number (788130).

Almost surely, 2^9865916 is an apocalyptic number.

It is an amenable number.

9865916 is a deficient number, since it is larger than the sum of its proper divisors (9049204).

9865916 is a wasteful number, since it uses less digits than its factorization.

9865916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053 (or 5051 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 9865916 is about 3141.0055714691. The cubic root of 9865916 is about 214.4762155243.

The spelling of 9865916 in words is "nine million, eight hundred sixty-five thousand, nine hundred sixteen".