87271585 has 8 divisors (see below), whose sum is σ = 108337320. Its totient is φ = 67409664.

The previous prime is 87271577. The next prime is 87271589. The reversal of 87271585 is 58517278.

It can be written as a sum of positive squares in 4 ways, for example, as 12552849 + 74718736 = 3543^2 + 8644^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87271585 - 2³ = 87271577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87271589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300792 + ... + 301081.

It is an arithmetic number, because the mean of its divisors is an integer number (13542165).

Almost surely, 2^87271585 is an apocalyptic number.

It is an amenable number.

87271585 is a deficient number, since it is larger than the sum of its proper divisors (21065735).

87271585 is a wasteful number, since it uses less digits than its factorization.

87271585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601907.

The product of its digits is 156800, while the sum is 43.

The square root of 87271585 is about 9341.9261932430. The cubic root of 87271585 is about 443.5653583474.

The spelling of 87271585 in words is "eighty-seven million, two hundred seventy-one thousand, five hundred eighty-five".