87285732 has 12 divisors (see below), whose sum is σ = 203666736. Its totient is φ = 29095240.

The previous prime is 87285727. The next prime is 87285733. The reversal of 87285732 is 23758278.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (87285733) 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 3 ways as a sum of consecutive naturals, for example, 3636894 + ... + 3636917.

It is an arithmetic number, because the mean of its divisors is an integer number (16972228).

Almost surely, 2^87285732 is an apocalyptic number.

It is an amenable number.

87285732 is an abundant number, since it is smaller than the sum of its proper divisors (116381004).

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

87285732 is a wasteful number, since it uses less digits than its factorization.

87285732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7273818 (or 7273816 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 87285732 is about 9342.6833404542. The cubic root of 87285732 is about 443.5893248350.

The spelling of 87285732 in words is "eighty-seven million, two hundred eighty-five thousand, seven hundred thirty-two".