9988317 has 6 divisors (see below), whose sum is σ = 14427582. Its totient is φ = 6658872.

The previous prime is 9988313. The next prime is 9988331. The reversal of 9988317 is 7138899.

9988317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8415801 + 1572516 = 2901^2 + 1254^2 .

It is not a de Polignac number, because 9988317 - 2² = 9988313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554898 + ... + 554915.

It is an arithmetic number, because the mean of its divisors is an integer number (2404597).

Almost surely, 2^9988317 is an apocalyptic number.

It is an amenable number.

9988317 is a deficient number, since it is larger than the sum of its proper divisors (4439265).

9988317 is a wasteful number, since it uses less digits than its factorization.

9988317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109819 (or 1109816 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 9988317 is about 3160.4298758239. The cubic root of 9988317 is about 215.3595354399.

The spelling of 9988317 in words is "nine million, nine hundred eighty-eight thousand, three hundred seventeen".