87518370 has 64 divisors (see below), whose sum is σ = 225348480. Its totient is φ = 21685248.

The previous prime is 87518323. The next prime is 87518377. The reversal of 87518370 is 7381578.

It is not an unprimeable number, because it can be changed into a prime (87518377) 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, 28762 + ... + 31658.

It is an arithmetic number, because the mean of its divisors is an integer number (3521070).

Almost surely, 2^87518370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87518370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112674240).

87518370 is an abundant number, since it is smaller than the sum of its proper divisors (137830110).

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

87518370 is a wasteful number, since it uses less digits than its factorization.

87518370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 87518370 is about 9355.1253332064. The cubic root of 87518370 is about 443.9830668812.

The spelling of 87518370 in words is "eighty-seven million, five hundred eighteen thousand, three hundred seventy".