87205585 has 8 divisors (see below), whose sum is σ = 104705856. Its totient is φ = 69725040.

The previous prime is 87205583. The next prime is 87205607. The reversal of 87205585 is 58550278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87205585 - 2¹ = 87205583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87205583) by changing a digit.

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, 7782 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (13088232).

Almost surely, 2^87205585 is an apocalyptic number.

It is an amenable number.

87205585 is a deficient number, since it is larger than the sum of its proper divisors (17500271).

87205585 is a wasteful number, since it uses less digits than its factorization.

87205585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9863.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 87205585 is about 9338.3930630489. The cubic root of 87205585 is about 443.4535132504.

The spelling of 87205585 in words is "eighty-seven million, two hundred five thousand, five hundred eighty-five".