9665874 has 24 divisors (see below), whose sum is σ = 21666060. Its totient is φ = 3110688.

The previous prime is 9665863. The next prime is 9665891. The reversal of 9665874 is 4785669.

9665874 is a `hidden beast` number, since 9 + 66 + 587 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9566649 + 99225 = 3093^2 + 315^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8737 + ... + 9780.

Almost surely, 2^9665874 is an apocalyptic number.

9665874 is an abundant number, since it is smaller than the sum of its proper divisors (12000186).

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

9665874 is a wasteful number, since it uses less digits than its factorization.

9665874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18554 (or 18551 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 9665874 is about 3108.9988742359. The cubic root of 9665874 is about 213.0167281711.

The spelling of 9665874 in words is "nine million, six hundred sixty-five thousand, eight hundred seventy-four".