9686385 has 20 divisors (see below), whose sum is σ = 17364468. Its totient is φ = 5165856.

The previous prime is 9686363. The next prime is 9686393. The reversal of 9686385 is 5836869.

9686385 is a `hidden beast` number, since 9 + 6 + 8 + 638 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4704561 + 4981824 = 2169^2 + 2232^2 .

It is not a de Polignac number, because 9686385 - 2⁶ = 9686321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

9686385 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9686385.

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 11554 + ... + 12363.

Almost surely, 2^9686385 is an apocalyptic number.

It is an amenable number.

9686385 is a deficient number, since it is larger than the sum of its proper divisors (7678083).

9686385 is a wasteful number, since it uses less digits than its factorization.

9686385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23934 (or 23925 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 9686385 is about 3112.2957764326. The cubic root of 9686385 is about 213.1672956651.

The spelling of 9686385 in words is "nine million, six hundred eighty-six thousand, three hundred eighty-five".