8559945 has 32 divisors (see below), whose sum is σ = 15350400. Its totient is φ = 4525632.

The previous prime is 8559917. The next prime is 8559949. The reversal of 8559945 is 5499558.

8559945 is a `hidden beast` number, since 8 + 559 + 94 + 5 = 666.

It is not a de Polignac number, because 8559945 - 2⁹ = 8559433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8559945.

It is not an unprimeable number, because it can be changed into a prime (8559949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21811 + ... + 22199.

It is an arithmetic number, because the mean of its divisors is an integer number (479700).

Almost surely, 2^8559945 is an apocalyptic number.

It is an amenable number.

8559945 is a deficient number, since it is larger than the sum of its proper divisors (6790455).

8559945 is a wasteful number, since it uses less digits than its factorization.

8559945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 560 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 8559945 is about 2925.7383683440. The cubic root of 8559945 is about 204.5613862338.

The spelling of 8559945 in words is "eight million, five hundred fifty-nine thousand, nine hundred forty-five".