87910784 has 64 divisors (see below), whose sum is σ = 196892640. Its totient is φ = 38793216.

The previous prime is 87910783. The next prime is 87910799. The reversal of 87910784 is 48701978.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87910783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37124 + ... + 39420.

Almost surely, 2^87910784 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 87910784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98446320).

87910784 is an abundant number, since it is smaller than the sum of its proper divisors (108981856).

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

87910784 is a wasteful number, since it uses less digits than its factorization.

87910784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 87910784 is about 9376.0750850236. The cubic root of 87910784 is about 444.6456531914.

The spelling of 87910784 in words is "eighty-seven million, nine hundred ten thousand, seven hundred eighty-four".