9722688 has 56 divisors (see below), whose sum is σ = 26090880. Its totient is φ = 3194880.

The previous prime is 9722681. The next prime is 9722693. The reversal of 9722688 is 8862279.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14848 + ... + 15488.

Almost surely, 2^9722688 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 9722688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13045440).

9722688 is an abundant number, since it is smaller than the sum of its proper divisors (16368192).

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

9722688 is a wasteful number, since it uses less digits than its factorization.

9722688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 725 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 9722688 is about 3118.1225120255. The cubic root of 9722688 is about 213.4332691501.

The spelling of 9722688 in words is "nine million, seven hundred twenty-two thousand, six hundred eighty-eight".