9168889 has 2 divisors, whose sum is σ = 9168890. Its totient is φ = 9168888.

The previous prime is 9168853. The next prime is 9168911. The reversal of 9168889 is 9888619.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6969600 + 2199289 = 2640^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 9168889 - 2¹¹ = 9166841 is a prime.

It is not a weakly prime, because it can be changed into another prime (9168689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584444 + 4584445.

It is an arithmetic number, because the mean of its divisors is an integer number (4584445).

Almost surely, 2^9168889 is an apocalyptic number.

It is an amenable number.

9168889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9168889 is an equidigital number, since it uses as much as digits as its factorization.

9168889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 49.

The square root of 9168889 is about 3028.0173381274. The cubic root of 9168889 is about 209.3014506350.

The spelling of 9168889 in words is "nine million, one hundred sixty-eight thousand, eight hundred eighty-nine".