87547856 has 40 divisors (see below), whose sum is σ = 186619008. Its totient is φ = 39784800.

The previous prime is 87547853. The next prime is 87547907. The reversal of 87547856 is 65874578.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87547853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19241 + ... + 23351.

Almost surely, 2^87547856 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 87547856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93309504).

87547856 is an abundant number, since it is smaller than the sum of its proper divisors (99071152).

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

87547856 is a wasteful number, since it uses less digits than its factorization.

87547856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152 (or 4124 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 50.

The square root of 87547856 is about 9356.7011280686. The cubic root of 87547856 is about 444.0329223755.

The spelling of 87547856 in words is "eighty-seven million, five hundred forty-seven thousand, eight hundred fifty-six".