85871056 has 40 divisors (see below), whose sum is σ = 171489024. Its totient is φ = 41629440.

The previous prime is 85871041. The next prime is 85871057. The reversal of 85871056 is 65017858.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85871057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145995 + ... + 146581.

Almost surely, 2^85871056 is an apocalyptic number.

It is an amenable number.

85871056 is a deficient number, since it is larger than the sum of its proper divisors (85617968).

85871056 is a wasteful number, since it uses less digits than its factorization.

85871056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 85871056 is about 9266.6636930451. The cubic root of 85871056 is about 441.1797814577.

The spelling of 85871056 in words is "eighty-five million, eight hundred seventy-one thousand, fifty-six".