85863873 has 8 divisors (see below), whose sum is σ = 114666336. Its totient is φ = 57152000.

The previous prime is 85863871. The next prime is 85863887. The reversal of 85863873 is 37836858.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85863873 - 2¹ = 85863871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85863871) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20403 + ... + 24248.

It is an arithmetic number, because the mean of its divisors is an integer number (14333292).

Almost surely, 2^85863873 is an apocalyptic number.

It is an amenable number.

85863873 is a deficient number, since it is larger than the sum of its proper divisors (28802463).

85863873 is a wasteful number, since it uses less digits than its factorization.

85863873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45295.

The product of its digits is 967680, while the sum is 48.

The square root of 85863873 is about 9266.2761128730. The cubic root of 85863873 is about 441.1674797467.

It can be divided in two parts, 85863 and 873, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 85863873 in words is "eighty-five million, eight hundred sixty-three thousand, eight hundred seventy-three".