87147480 has 96 divisors (see below), whose sum is σ = 304147440. Its totient is φ = 19918080.

The previous prime is 87147449. The next prime is 87147497. The reversal of 87147480 is 8474178.

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, 1531 + ... + 13290.

Almost surely, 2^87147480 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 87147480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152073720).

87147480 is an abundant number, since it is smaller than the sum of its proper divisors (216999960).

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

87147480 is a wasteful number, since it uses less digits than its factorization.

87147480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14849 (or 14838 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 87147480 is about 9335.2814633518. The cubic root of 87147480 is about 443.3550004800.

The spelling of 87147480 in words is "eighty-seven million, one hundred forty-seven thousand, four hundred eighty".