87452784 has 120 divisors (see below), whose sum is σ = 257816832. Its totient is φ = 28693440.

The previous prime is 87452779. The next prime is 87452821. The reversal of 87452784 is 48725478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322569 + ... + 322839.

Almost surely, 2^87452784 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 87452784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128908416).

87452784 is an abundant number, since it is smaller than the sum of its proper divisors (170364048).

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

87452784 is a wasteful number, since it uses less digits than its factorization.

87452784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 359 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 87452784 is about 9351.6193250153. The cubic root of 87452784 is about 443.8721326458.

The spelling of 87452784 in words is "eighty-seven million, four hundred fifty-two thousand, seven hundred eighty-four".