9989678317 has 8 divisors (see below), whose sum is σ = 10565291360. Its totient is φ = 9419049360.

The previous prime is 9989678291. The next prime is 9989678327. The reversal of 9989678317 is 7138769899.

9989678317 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9989678317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989678327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241898 + ... + 1249915.

It is an arithmetic number, because the mean of its divisors is an integer number (1320661420).

Almost surely, 2^9989678317 is an apocalyptic number.

It is an amenable number.

9989678317 is a deficient number, since it is larger than the sum of its proper divisors (575613043).

9989678317 is a wasteful number, since it uses less digits than its factorization.

9989678317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492043.

The product of its digits is 41150592, while the sum is 67.

The square root of 9989678317 is about 99948.3782609803. The cubic root of 9989678317 is about 2153.6931884580.

The spelling of 9989678317 in words is "nine billion, nine hundred eighty-nine million, six hundred seventy-eight thousand, three hundred seventeen".