87565236 has 48 divisors (see below), whose sum is σ = 228930240. Its totient is φ = 25816320.

The previous prime is 87565207. The next prime is 87565237. The reversal of 87565236 is 63256578.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87565237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4081 + ... + 13848.

It is an arithmetic number, because the mean of its divisors is an integer number (4769380).

Almost surely, 2^87565236 is an apocalyptic number.

It is an amenable number.

87565236 is an abundant number, since it is smaller than the sum of its proper divisors (141365004).

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

87565236 is a wasteful number, since it uses less digits than its factorization.

87565236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17984 (or 17982 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 87565236 is about 9357.6298281135. The cubic root of 87565236 is about 444.0623035693.

The spelling of 87565236 in words is "eighty-seven million, five hundred sixty-five thousand, two hundred thirty-six".