8791169 has 2 divisors, whose sum is σ = 8791170. Its totient is φ = 8791168.

The previous prime is 8791121. The next prime is 8791183. The reversal of 8791169 is 9611978.

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., 4464769 + 4326400 = 2113^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 8791169 - 2²⁰ = 7742593 is a prime.

It is a super-2 number, since 2×8791169² = 154569304773122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8791109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4395584 + 4395585.

It is an arithmetic number, because the mean of its divisors is an integer number (4395585).

Almost surely, 2^8791169 is an apocalyptic number.

It is an amenable number.

8791169 is a deficient number, since it is larger than the sum of its proper divisors (1).

8791169 is an equidigital number, since it uses as much as digits as its factorization.

8791169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 41.

The square root of 8791169 is about 2964.9905564774. The cubic root of 8791169 is about 206.3869388731.

It can be divided in two parts, 879 and 1169, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 8791169 in words is "eight million, seven hundred ninety-one thousand, one hundred sixty-nine".