85774871 has 16 divisors (see below), whose sum is σ = 105962304. Its totient is φ = 67613184.

The previous prime is 85774867. The next prime is 85774891. The reversal of 85774871 is 17847758.

It is a cyclic number.

It is not a de Polignac number, because 85774871 - 2² = 85774867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85774841) 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 15 ways as a sum of consecutive naturals, for example, 25055 + ... + 28271.

It is an arithmetic number, because the mean of its divisors is an integer number (6622644).

Almost surely, 2^85774871 is an apocalyptic number.

85774871 is a deficient number, since it is larger than the sum of its proper divisors (20187433).

85774871 is a wasteful number, since it uses less digits than its factorization.

85774871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530.

The product of its digits is 439040, while the sum is 47.

The square root of 85774871 is about 9261.4723991383. The cubic root of 85774871 is about 441.0149966705.

The spelling of 85774871 in words is "eighty-five million, seven hundred seventy-four thousand, eight hundred seventy-one".