87447528 has 192 divisors, whose sum is σ = 290534400. Its totient is φ = 23224320.

The previous prime is 87447491. The next prime is 87447533. The reversal of 87447528 is 82574478.

87447528 is a `hidden beast` number, since 87 + 4 + 47 + 528 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 453000 + ... + 453192.

It is an arithmetic number, because the mean of its divisors is an integer number (1513200).

Almost surely, 2^87447528 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 87447528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145267200).

87447528 is an abundant number, since it is smaller than the sum of its proper divisors (203086872).

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

87447528 is a wasteful number, since it uses less digits than its factorization.

87447528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 265 counting only the distinct ones).

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

The square root of 87447528 is about 9351.3382999440. The cubic root of 87447528 is about 443.8632400810.

It can be divided in two parts, 874475 and 28, that added together give a triangular number (874503 = T₁₃₂₂).

The spelling of 87447528 in words is "eighty-seven million, four hundred forty-seven thousand, five hundred twenty-eight".