87170216 has 48 divisors (see below), whose sum is σ = 193024800. Its totient is φ = 36789984.

The previous prime is 87170197. The next prime is 87170263. The reversal of 87170216 is 61207178.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24605 + ... + 27923.

It is an arithmetic number, because the mean of its divisors is an integer number (4021350).

Almost surely, 2^87170216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87170216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96512400).

87170216 is an abundant number, since it is smaller than the sum of its proper divisors (105854584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87170216 is a wasteful number, since it uses less digits than its factorization.

87170216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 87170216 is about 9336.4991297595. The cubic root of 87170216 is about 443.3935529155.

The spelling of 87170216 in words is "eighty-seven million, one hundred seventy thousand, two hundred sixteen".