85868571 has 8 divisors (see below), whose sum is σ = 115672144. Its totient is φ = 56655360.

The previous prime is 85868569. The next prime is 85868579. The reversal of 85868571 is 17586858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85868571 - 2¹ = 85868569 is a prime.

It is a super-2 number, since 2×85868571² = 14746822971164082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85868571.

It is not an unprimeable number, because it can be changed into a prime (85868579) 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 7 ways as a sum of consecutive naturals, for example, 147250 + ... + 147831.

It is an arithmetic number, because the mean of its divisors is an integer number (14459018).

Almost surely, 2^85868571 is an apocalyptic number.

85868571 is a deficient number, since it is larger than the sum of its proper divisors (29803573).

85868571 is a wasteful number, since it uses less digits than its factorization.

85868571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295181.

The product of its digits is 537600, while the sum is 48.

The square root of 85868571 is about 9266.5296092982. The cubic root of 85868571 is about 441.1755256879.

It can be divided in two parts, 8586857 and 1, that added together give a palindrome (8586858).

The spelling of 85868571 in words is "eighty-five million, eight hundred sixty-eight thousand, five hundred seventy-one".