8863561 has 12 divisors (see below), whose sum is σ = 10508292. Its totient is φ = 7451808.

The previous prime is 8863537. The next prime is 8863567. The reversal of 8863561 is 1653688.

8863561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7529536 + 1334025 = 2744^2 + 1155^2 .

It is not a de Polignac number, because 8863561 - 2⁵ = 8863529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8863561.

It is not an unprimeable number, because it can be changed into a prime (8863567) 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 11 ways as a sum of consecutive naturals, for example, 891 + ... + 4303.

It is an arithmetic number, because the mean of its divisors is an integer number (875691).

Almost surely, 2^8863561 is an apocalyptic number.

It is an amenable number.

8863561 is a deficient number, since it is larger than the sum of its proper divisors (1644731).

8863561 is a wasteful number, since it uses less digits than its factorization.

8863561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3473 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 8863561 is about 2977.1733238090. The cubic root of 8863561 is about 206.9518974632.

The spelling of 8863561 in words is "eight million, eight hundred sixty-three thousand, five hundred sixty-one".