87218875 has 24 divisors (see below), whose sum is σ = 113873760. Its totient is φ = 66690800.

The previous prime is 87218869. The next prime is 87218899. The reversal of 87218875 is 57881278.

It is a happy number.

It is not a de Polignac number, because 87218875 - 2¹¹ = 87216827 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65466 + ... + 66784.

It is an arithmetic number, because the mean of its divisors is an integer number (4744740).

Almost surely, 2^87218875 is an apocalyptic number.

87218875 is a deficient number, since it is larger than the sum of its proper divisors (26654885).

87218875 is a wasteful number, since it uses less digits than its factorization.

87218875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380 (or 1347 counting only the distinct ones).

The product of its digits is 250880, while the sum is 46.

The square root of 87218875 is about 9339.1046144692. The cubic root of 87218875 is about 443.4760393223.

The spelling of 87218875 in words is "eighty-seven million, two hundred eighteen thousand, eight hundred seventy-five".