87485871 has 32 divisors (see below), whose sum is σ = 131897088. Its totient is φ = 51114240.

The previous prime is 87485869. The next prime is 87485887. The reversal of 87485871 is 17858478.

It is not a de Polignac number, because 87485871 - 2¹ = 87485869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87485871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87485851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167016 + ... + 167538.

It is an arithmetic number, because the mean of its divisors is an integer number (4121784).

Almost surely, 2^87485871 is an apocalyptic number.

87485871 is a deficient number, since it is larger than the sum of its proper divisors (44411217).

87485871 is a wasteful number, since it uses less digits than its factorization.

87485871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its digits is 501760, while the sum is 48.

The square root of 87485871 is about 9353.3882096276. The cubic root of 87485871 is about 443.9281039743.

The spelling of 87485871 in words is "eighty-seven million, four hundred eighty-five thousand, eight hundred seventy-one".