87147528 has 128 divisors (see below), whose sum is σ = 252067200. Its totient is φ = 24883200.

The previous prime is 87147517. The next prime is 87147563. The reversal of 87147528 is 82574178.

It is a self number, because there is not a number n which added to its sum of digits gives 87147528.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361488 + ... + 361728.

It is an arithmetic number, because the mean of its divisors is an integer number (1969275).

Almost surely, 2^87147528 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 87147528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126033600).

87147528 is an abundant number, since it is smaller than the sum of its proper divisors (164919672).

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

87147528 is a wasteful number, since it uses less digits than its factorization.

87147528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 339 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 87147528 is about 9335.2840342434. The cubic root of 87147528 is about 443.3550818785.

The spelling of 87147528 in words is "eighty-seven million, one hundred forty-seven thousand, five hundred twenty-eight".