8611560 has 96 divisors (see below), whose sum is σ = 29484000. Its totient is φ = 2173824.

The previous prime is 8611549. The next prime is 8611573. The reversal of 8611560 is 651168.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6211 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (307125).

Almost surely, 2^8611560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8611560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14742000).

8611560 is an abundant number, since it is smaller than the sum of its proper divisors (20872440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8611560 is a wasteful number, since it uses less digits than its factorization.

8611560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8611560 is about 2934.5459614734. The cubic root of 8611560 is about 204.9717192794.

The spelling of 8611560 in words is "eight million, six hundred eleven thousand, five hundred sixty".