9898117 has 2 divisors, whose sum is σ = 9898118. Its totient is φ = 9898116.

The previous prime is 9898087. The next prime is 9898123. The reversal of 9898117 is 7118989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9235521 + 662596 = 3039^2 + 814^2 .

It is a cyclic number.

It is not a de Polignac number, because 9898117 - 2²³ = 1509509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9898157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949058 + 4949059.

It is an arithmetic number, because the mean of its divisors is an integer number (4949059).

Almost surely, 2^9898117 is an apocalyptic number.

It is an amenable number.

9898117 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898117 is an equidigital number, since it uses as much as digits as its factorization.

9898117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 43.

The square root of 9898117 is about 3146.1273019381. The cubic root of 9898117 is about 214.7093024612.

The spelling of 9898117 in words is "nine million, eight hundred ninety-eight thousand, one hundred seventeen".