87107871 has 4 divisors (see below), whose sum is σ = 116143832. Its totient is φ = 58071912.

The previous prime is 87107869. The next prime is 87107887. The reversal of 87107871 is 17870178.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87107871 - 2¹ = 87107869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87107071) 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 3 ways as a sum of consecutive naturals, for example, 14517976 + ... + 14517981.

It is an arithmetic number, because the mean of its divisors is an integer number (29035958).

Almost surely, 2^87107871 is an apocalyptic number.

87107871 is a deficient number, since it is larger than the sum of its proper divisors (29035961).

87107871 is a wasteful number, since it uses less digits than its factorization.

87107871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29035960.

The product of its (nonzero) digits is 21952, while the sum is 39.

The square root of 87107871 is about 9333.1597543383. The cubic root of 87107871 is about 443.2878212210.

It can be divided in two parts, 87107 and 871, that added together give a palindrome (87978).

The spelling of 87107871 in words is "eighty-seven million, one hundred seven thousand, eight hundred seventy-one".