8866161 has 6 divisors (see below), whose sum is σ = 12806690. Its totient is φ = 5910768.

The previous prime is 8866159. The next prime is 8866171. The reversal of 8866161 is 1616688.

It can be written as a sum of positive squares in only one way, i.e., 4704561 + 4161600 = 2169^2 + 2040^2 .

It is not a de Polignac number, because 8866161 - 2¹ = 8866159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8866111) 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 in 5 ways as a sum of consecutive naturals, for example, 492556 + ... + 492573.

Almost surely, 2^8866161 is an apocalyptic number.

It is an amenable number.

8866161 is a deficient number, since it is larger than the sum of its proper divisors (3940529).

8866161 is a wasteful number, since it uses less digits than its factorization.

8866161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985135 (or 985132 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 8866161 is about 2977.6099475922. The cubic root of 8866161 is about 206.9721309537.

The spelling of 8866161 in words is "eight million, eight hundred sixty-six thousand, one hundred sixty-one".