9997117 has 8 divisors (see below), whose sum is σ = 10868256. Its totient is φ = 9140592.

The previous prime is 9997109. The next prime is 9997123. The reversal of 9997117 is 7117999.

9997117 is digitally balanced in base 2 and base 3, because in such bases 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 cyclic number.

It is not a de Polignac number, because 9997117 - 2³ = 9997109 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 (9997177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203 + ... + 4984.

It is an arithmetic number, because the mean of its divisors is an integer number (1358532).

Almost surely, 2^9997117 is an apocalyptic number.

It is an amenable number.

9997117 is a deficient number, since it is larger than the sum of its proper divisors (871139).

9997117 is a wasteful number, since it uses less digits than its factorization.

9997117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7307.

The product of its digits is 35721, while the sum is 43.

The square root of 9997117 is about 3161.8217849841. The cubic root of 9997117 is about 215.4227628958.

The spelling of 9997117 in words is "nine million, nine hundred ninety-seven thousand, one hundred seventeen".