86871056 has 20 divisors (see below), whose sum is σ = 170685504. Its totient is φ = 42823200.

The previous prime is 86871047. The next prime is 86871073. The reversal of 86871056 is 65017868.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37100 + ... + 39371.

Almost surely, 2^86871056 is an apocalyptic number.

It is an amenable number.

86871056 is a deficient number, since it is larger than the sum of its proper divisors (83814448).

86871056 is a wasteful number, since it uses less digits than its factorization.

86871056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76550 (or 76544 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 86871056 is about 9320.4643661140. The cubic root of 86871056 is about 442.8857432002.

The spelling of 86871056 in words is "eighty-six million, eight hundred seventy-one thousand, fifty-six".