8575681 has 4 divisors (see below), whose sum is σ = 8581572. Its totient is φ = 8569792.

The previous prime is 8575663. The next prime is 8575703. The reversal of 8575681 is 1865758.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1865758 = 2 ⋅932879.

It can be written as a sum of positive squares in 2 ways, for example, as 4410000 + 4165681 = 2100^2 + 2041^2 .

It is a cyclic number.

It is not a de Polignac number, because 8575681 - 2⁵ = 8575649 is a prime.

It is a super-2 number, since 2×8575681² = 147084609227522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8575181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (2145393).

Almost surely, 2^8575681 is an apocalyptic number.

It is an amenable number.

8575681 is a deficient number, since it is larger than the sum of its proper divisors (5891).

8575681 is a wasteful number, since it uses less digits than its factorization.

8575681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890.

The product of its digits is 67200, while the sum is 40.

The square root of 8575681 is about 2928.4263692297. The cubic root of 8575681 is about 204.6866599154.

The spelling of 8575681 in words is "eight million, five hundred seventy-five thousand, six hundred eighty-one".