9684139917 has 16 divisors (see below), whose sum is σ = 12946913280. Its totient is φ = 6438753072.

The previous prime is 9684139909. The next prime is 9684139919. The reversal of 9684139917 is 7199314869.

It is not a de Polignac number, because 9684139917 - 2³ = 9684139909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9684139919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644834 + ... + 2648492.

It is an arithmetic number, because the mean of its divisors is an integer number (809182080).

Almost surely, 2^9684139917 is an apocalyptic number.

It is an amenable number.

9684139917 is a deficient number, since it is larger than the sum of its proper divisors (3262773363).

9684139917 is a wasteful number, since it uses less digits than its factorization.

9684139917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792.

The product of its digits is 2939328, while the sum is 57.

The square root of 9684139917 is about 98408.0277060769. The cubic root of 9684139917 is about 2131.5082528765.

The spelling of 9684139917 in words is "nine billion, six hundred eighty-four million, one hundred thirty-nine thousand, nine hundred seventeen".