9641688 has 64 divisors (see below), whose sum is σ = 28512000. Its totient is φ = 2658432.

The previous prime is 9641657. The next prime is 9641741. The reversal of 9641688 is 8861469.

9641688 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 3883 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (445500).

Almost surely, 2^9641688 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 9641688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14256000).

9641688 is an abundant number, since it is smaller than the sum of its proper divisors (18870312).

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

9641688 is a wasteful number, since it uses less digits than its factorization.

9641688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024 (or 2020 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 9641688 is about 3105.1067614496. The cubic root of 9641688 is about 212.8389092551.

The spelling of 9641688 in words is "nine million, six hundred forty-one thousand, six hundred eighty-eight".