9668538 has 64 divisors (see below), whose sum is σ = 24071040. Its totient is φ = 2851200.

The previous prime is 9668537. The next prime is 9668539. The reversal of 9668538 is 8358669.

It is an interprime number because it is at equal distance from previous prime (9668537) and next prime (9668539).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9668493 and 9668502.

It is not an unprimeable number, because it can be changed into a prime (9668537) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 24156 + ... + 24552.

It is an arithmetic number, because the mean of its divisors is an integer number (376110).

Almost surely, 2^9668538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9668538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12035520).

9668538 is an abundant number, since it is smaller than the sum of its proper divisors (14402502).

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

9668538 is a wasteful number, since it uses less digits than its factorization.

9668538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 454 counting only the distinct ones).

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

The square root of 9668538 is about 3109.4272784550. The cubic root of 9668538 is about 213.0362961356.

The spelling of 9668538 in words is "nine million, six hundred sixty-eight thousand, five hundred thirty-eight".