87897180 has 96 divisors (see below), whose sum is σ = 287078400. Its totient is φ = 20086080.

The previous prime is 87897151. The next prime is 87897181. The reversal of 87897180 is 8179878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87897181) 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, 18445 + ... + 22715.

It is an arithmetic number, because the mean of its divisors is an integer number (2990400).

Almost surely, 2^87897180 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 87897180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143539200).

87897180 is an abundant number, since it is smaller than the sum of its proper divisors (199181220).

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

87897180 is a wasteful number, since it uses less digits than its factorization.

87897180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304 (or 4288 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 48.

The square root of 87897180 is about 9375.3495934818. The cubic root of 87897180 is about 444.6227160300.

The spelling of 87897180 in words is "eighty-seven million, eight hundred ninety-seven thousand, one hundred eighty".