9686979 has 32 divisors (see below), whose sum is σ = 15782400. Its totient is φ = 5844960.

The previous prime is 9686977. The next prime is 9687001. The reversal of 9686979 is 9796869.

It is not a de Polignac number, because 9686979 - 2¹ = 9686977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9686977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11389 + ... + 12209.

It is an arithmetic number, because the mean of its divisors is an integer number (493200).

Almost surely, 2^9686979 is an apocalyptic number.

9686979 is a deficient number, since it is larger than the sum of its proper divisors (6095421).

9686979 is a wasteful number, since it uses less digits than its factorization.

9686979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 866 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 9686979 is about 3112.3912029178. The cubic root of 9686979 is about 213.1716529420.

The spelling of 9686979 in words is "nine million, six hundred eighty-six thousand, nine hundred seventy-nine".