9688820 has 24 divisors (see below), whose sum is σ = 20898024. Its totient is φ = 3770496.

The previous prime is 9688817. The next prime is 9688859. The reversal of 9688820 is 288869.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4831204 + 4857616 = 2198^2 + 2204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5807 + ... + 7286.

It is an arithmetic number, because the mean of its divisors is an integer number (870751).

Almost surely, 2^9688820 is an apocalyptic number.

It is an amenable number.

9688820 is an abundant number, since it is smaller than the sum of its proper divisors (11209204).

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

9688820 is a wasteful number, since it uses less digits than its factorization.

9688820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13139 (or 13137 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 9688820 is about 3112.6869421771. The cubic root of 9688820 is about 213.1851564348.

The spelling of 9688820 in words is "nine million, six hundred eighty-eight thousand, eight hundred twenty".