87565827 has 16 divisors (see below), whose sum is σ = 124169760. Its totient is φ = 54700032.

The previous prime is 87565817. The next prime is 87565859. The reversal of 87565827 is 72856578.

It is not a de Polignac number, because 87565827 - 2¹² = 87561731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87565817) 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, 8199 + ... + 15567.

It is an arithmetic number, because the mean of its divisors is an integer number (7760610).

Almost surely, 2^87565827 is an apocalyptic number.

87565827 is a deficient number, since it is larger than the sum of its proper divisors (36603933).

87565827 is a wasteful number, since it uses less digits than its factorization.

87565827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622.

The product of its digits is 940800, while the sum is 48.

The square root of 87565827 is about 9357.6614065695. The cubic root of 87565827 is about 444.0633025967.

The spelling of 87565827 in words is "eighty-seven million, five hundred sixty-five thousand, eight hundred twenty-seven".