87584539 has 4 divisors (see below), whose sum is σ = 100096624. Its totient is φ = 75072456.

The previous prime is 87584533. The next prime is 87584551. The reversal of 87584539 is 93548578.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87584539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87584492 and 87584501.

It is not an unprimeable number, because it can be changed into a prime (87584533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6256032 + ... + 6256045.

It is an arithmetic number, because the mean of its divisors is an integer number (25024156).

Almost surely, 2^87584539 is an apocalyptic number.

87584539 is a deficient number, since it is larger than the sum of its proper divisors (12512085).

87584539 is a wasteful number, since it uses less digits than its factorization.

87584539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12512084.

The product of its digits is 1209600, while the sum is 49.

The square root of 87584539 is about 9358.6611756169. The cubic root of 87584539 is about 444.0949310718.

The spelling of 87584539 in words is "eighty-seven million, five hundred eighty-four thousand, five hundred thirty-nine".