9668646 has 40 divisors (see below), whose sum is σ = 23336544. Its totient is φ = 2974320.

The previous prime is 9668639. The next prime is 9668647. The reversal of 9668646 is 6468669.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9668647) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 190 + ... + 4401.

Almost surely, 2^9668646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9668646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11668272).

9668646 is an abundant number, since it is smaller than the sum of its proper divisors (13667898).

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

9668646 is a wasteful number, since it uses less digits than its factorization.

9668646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618 (or 4609 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 9668646 is about 3109.4446449487. Note that the first 3 decimals coincide. The cubic root of 9668646 is about 213.0370893556.

The spelling of 9668646 in words is "nine million, six hundred sixty-eight thousand, six hundred forty-six".