9901117 has 2 divisors, whose sum is σ = 9901118. Its totient is φ = 9901116.

The previous prime is 9901103. The next prime is 9901139. The reversal of 9901117 is 7111099.

9901117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7901721 + 1999396 = 2811^2 + 1414^2 .

It is an emirp because it is prime and its reverse (7111099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9901117 - 2¹¹ = 9899069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9901187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950558 + 4950559.

It is an arithmetic number, because the mean of its divisors is an integer number (4950559).

Almost surely, 2^9901117 is an apocalyptic number.

It is an amenable number.

9901117 is a deficient number, since it is larger than the sum of its proper divisors (1).

9901117 is an equidigital number, since it uses as much as digits as its factorization.

9901117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 28.

The square root of 9901117 is about 3146.6040424559. The cubic root of 9901117 is about 214.7309922042.

The spelling of 9901117 in words is "nine million, nine hundred one thousand, one hundred seventeen".