9688857 has 16 divisors (see below), whose sum is σ = 13366272. Its totient is φ = 6238080.

The previous prime is 9688817. The next prime is 9688859. The reversal of 9688857 is 7588869.

It is a happy number.

It is not a de Polignac number, because 9688857 - 2¹⁰ = 9687833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9688859) 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 15 ways as a sum of consecutive naturals, for example, 20973 + ... + 21429.

It is an arithmetic number, because the mean of its divisors is an integer number (835392).

Almost surely, 2^9688857 is an apocalyptic number.

It is an amenable number.

9688857 is a deficient number, since it is larger than the sum of its proper divisors (3677415).

9688857 is a wasteful number, since it uses less digits than its factorization.

9688857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688.

The product of its digits is 967680, while the sum is 51.

The square root of 9688857 is about 3112.6928855896. The cubic root of 9688857 is about 213.1854278074.

The spelling of 9688857 in words is "nine million, six hundred eighty-eight thousand, eight hundred fifty-seven".