8660545 has 4 divisors (see below), whose sum is σ = 10392660. Its totient is φ = 6928432.

The previous prime is 8660543. The next prime is 8660569. The reversal of 8660545 is 5450668.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1962801 + 6697744 = 1401^2 + 2588^2 .

It is a cyclic number.

It is not a de Polignac number, because 8660545 - 2¹ = 8660543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8660545.

It is not an unprimeable number, because it can be changed into a prime (8660543) 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 in 3 ways as a sum of consecutive naturals, for example, 866050 + ... + 866059.

It is an arithmetic number, because the mean of its divisors is an integer number (2598165).

Almost surely, 2^8660545 is an apocalyptic number.

It is an amenable number.

8660545 is a deficient number, since it is larger than the sum of its proper divisors (1732115).

8660545 is a wasteful number, since it uses less digits than its factorization.

8660545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732114.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 8660545 is about 2942.8803917251. The cubic root of 8660545 is about 205.3596304821.

The spelling of 8660545 in words is "eight million, six hundred sixty thousand, five hundred forty-five".