9655668 has 72 divisors (see below), whose sum is σ = 27387360. Its totient is φ = 2842560.

The previous prime is 9655661. The next prime is 9655673. The reversal of 9655668 is 8665569.

9655668 is a `hidden beast` number, since 96 + 556 + 6 + 8 = 666.

9655668 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 not an unprimeable number, because it can be changed into a prime (9655661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14323 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (380380).

Almost surely, 2^9655668 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 9655668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13693680).

9655668 is an abundant number, since it is smaller than the sum of its proper divisors (17731692).

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

9655668 is a wasteful number, since it uses less digits than its factorization.

9655668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 712 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 9655668 is about 3107.3570763593. The cubic root of 9655668 is about 212.9417284227.

Subtracting from 9655668 its reverse (8665569), we obtain a palindrome (990099).

The spelling of 9655668 in words is "nine million, six hundred fifty-five thousand, six hundred sixty-eight".