87871018 has 8 divisors (see below), whose sum is σ = 132615648. Its totient is φ = 43665804.

The previous prime is 87871013. The next prime is 87871027. The reversal of 87871018 is 81017878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (87871013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134446 + ... + 135097.

It is an arithmetic number, because the mean of its divisors is an integer number (16576956).

Almost surely, 2^87871018 is an apocalyptic number.

87871018 is a deficient number, since it is larger than the sum of its proper divisors (44744630).

87871018 is a wasteful number, since it uses less digits than its factorization.

87871018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269708.

The product of its (nonzero) digits is 25088, while the sum is 40.

The square root of 87871018 is about 9373.9542350067. The cubic root of 87871018 is about 444.5785986732.

The spelling of 87871018 in words is "eighty-seven million, eight hundred seventy-one thousand, eighteen".