87909252 has 24 divisors (see below), whose sum is σ = 205277856. Its totient is φ = 29280768.

The previous prime is 87909229. The next prime is 87909271. The reversal of 87909252 is 25290978.

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 7 ways as a sum of consecutive naturals, for example, 23623 + ... + 27089.

It is an arithmetic number, because the mean of its divisors is an integer number (8553244).

Almost surely, 2^87909252 is an apocalyptic number.

It is an amenable number.

87909252 is an abundant number, since it is smaller than the sum of its proper divisors (117368604).

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

87909252 is a wasteful number, since it uses less digits than its factorization.

87909252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587 (or 5585 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 87909252 is about 9375.9933873697. The cubic root of 87909252 is about 444.6430702656.

The spelling of 87909252 in words is "eighty-seven million, nine hundred nine thousand, two hundred fifty-two".