8657085231 has 6 divisors (see below), whose sum is σ = 12504678680. Its totient is φ = 5771390148.

The previous prime is 8657085223. The next prime is 8657085233. The reversal of 8657085231 is 1325807568.

It is not a de Polignac number, because 8657085231 - 2³ = 8657085223 is a prime.

It is a super-2 number, since 2×8657085231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8657085233) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 480949171 + ... + 480949188.

Almost surely, 2^8657085231 is an apocalyptic number.

8657085231 is a deficient number, since it is larger than the sum of its proper divisors (3847593449).

8657085231 is a wasteful number, since it uses less digits than its factorization.

8657085231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961898365 (or 961898362 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 8657085231 is about 93043.4588297318. The cubic root of 8657085231 is about 2053.3228072075.

The spelling of 8657085231 in words is "eight billion, six hundred fifty-seven million, eighty-five thousand, two hundred thirty-one".