9685872 has 80 divisors (see below), whose sum is σ = 31783680. Its totient is φ = 2766528.

The previous prime is 9685861. The next prime is 9685889. The reversal of 9685872 is 2785869.

9685872 is a `hidden beast` number, since 9 + 68 + 587 + 2 = 666.

9685872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9685872² = 187632232800768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (397296).

Almost surely, 2^9685872 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 9685872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15891840).

9685872 is an abundant number, since it is smaller than the sum of its proper divisors (22097808).

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

9685872 is a wasteful number, since it uses less digits than its factorization.

9685872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227 (or 3215 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 9685872 is about 3112.2133602952. The cubic root of 9685872 is about 213.1635324189.

The spelling of 9685872 in words is "nine million, six hundred eighty-five thousand, eight hundred seventy-two".