9919117 has 6 divisors (see below), whose sum is σ = 10741002. Its totient is φ = 9155952.

The previous prime is 9919097. The next prime is 9919183. The reversal of 9919117 is 7119199.

It can be written as a sum of positive squares in 3 ways, for example, as 2916 + 9916201 = 54^2 + 3149^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9919117 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 (9919717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29178 + ... + 29515.

It is an arithmetic number, because the mean of its divisors is an integer number (1790167).

Almost surely, 2^9919117 is an apocalyptic number.

It is an amenable number.

9919117 is a deficient number, since it is larger than the sum of its proper divisors (821885).

9919117 is a wasteful number, since it uses less digits than its factorization.

9919117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58719 (or 58706 counting only the distinct ones).

The product of its digits is 5103, while the sum is 37.

The square root of 9919117 is about 3149.4629700951. The cubic root of 9919117 is about 214.8610387423.

The spelling of 9919117 in words is "nine million, nine hundred nineteen thousand, one hundred seventeen".