8640575 has 12 divisors (see below), whose sum is σ = 10750800. Its totient is φ = 6888960.

The previous prime is 8640559. The next prime is 8640587. The reversal of 8640575 is 5750468.

It is not a de Polignac number, because 8640575 - 2⁴ = 8640559 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 14126 + ... + 14724.

It is an arithmetic number, because the mean of its divisors is an integer number (895900).

Almost surely, 2^8640575 is an apocalyptic number.

8640575 is a deficient number, since it is larger than the sum of its proper divisors (2110225).

8640575 is a wasteful number, since it uses less digits than its factorization.

8640575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 8640575 is about 2939.4854991988. The cubic root of 8640575 is about 205.2016655195.

The spelling of 8640575 in words is "eight million, six hundred forty thousand, five hundred seventy-five".