87687165 has 16 divisors (see below), whose sum is σ = 140424768. Its totient is φ = 46724736.

The previous prime is 87687163. The next prime is 87687167. The reversal of 87687165 is 56178678.

It is an interprime number because it is at equal distance from previous prime (87687163) and next prime (87687167).

It is not a de Polignac number, because 87687165 - 2¹ = 87687163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87687163) 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, 22609 + ... + 26201.

It is an arithmetic number, because the mean of its divisors is an integer number (8776548).

Almost surely, 2^87687165 is an apocalyptic number.

It is an amenable number.

87687165 is a deficient number, since it is larger than the sum of its proper divisors (52737603).

87687165 is a wasteful number, since it uses less digits than its factorization.

87687165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228.

The product of its digits is 564480, while the sum is 48.

The square root of 87687165 is about 9364.1425127985. The cubic root of 87687165 is about 444.2683174464.

The spelling of 87687165 in words is "eighty-seven million, six hundred eighty-seven thousand, one hundred sixty-five".