9116881 has 2 divisors, whose sum is σ = 9116882. Its totient is φ = 9116880.

The previous prime is 9116873. The next prime is 9116917. The reversal of 9116881 is 1886119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8850625 + 266256 = 2975^2 + 516^2 .

It is an emirp because it is prime and its reverse (1886119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9116881 - 2³ = 9116873 is a prime.

It is a super-2 number, since 2×9116881² = 166235038336322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9116831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4558440 + 4558441.

It is an arithmetic number, because the mean of its divisors is an integer number (4558441).

Almost surely, 2^9116881 is an apocalyptic number.

It is an amenable number.

9116881 is a deficient number, since it is larger than the sum of its proper divisors (1).

9116881 is an equidigital number, since it uses as much as digits as its factorization.

9116881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 34.

The square root of 9116881 is about 3019.4173278962. The cubic root of 9116881 is about 208.9049650727.

The spelling of 9116881 in words is "nine million, one hundred sixteen thousand, eight hundred eighty-one".