85384871 has 16 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 71418720.

The previous prime is 85384861. The next prime is 85384877. The reversal of 85384871 is 17848358.

It is a cyclic number.

It is not a de Polignac number, because 85384871 - 2¹⁰ = 85383847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85384877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53990 + ... + 55548.

It is an arithmetic number, because the mean of its divisors is an integer number (6289920).

Almost surely, 2^85384871 is an apocalyptic number.

85384871 is a deficient number, since it is larger than the sum of its proper divisors (15253849).

85384871 is a wasteful number, since it uses less digits than its factorization.

85384871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its digits is 215040, while the sum is 44.

The square root of 85384871 is about 9240.3934440044. The cubic root of 85384871 is about 440.3455807788.

The spelling of 85384871 in words is "eighty-five million, three hundred eighty-four thousand, eight hundred seventy-one".