87715 has 8 divisors (see below), whose sum is σ = 107568. Its totient is φ = 68640.

The previous prime is 87701. The next prime is 87719. The reversal of 87715 is 51778.

It is a happy number.

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

It is not a de Polignac number, because 87715 - 2⁵ = 87683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87719) 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, 100 + ... + 430.

It is an arithmetic number, because the mean of its divisors is an integer number (13446).

2⁸⁷⁷¹⁵ is an apocalyptic number.

87715 is a deficient number, since it is larger than the sum of its proper divisors (19853).

87715 is a wasteful number, since it uses less digits than its factorization.

87715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389.

The product of its digits is 1960, while the sum is 28.

The square root of 87715 is about 296.1671825169. The cubic root of 87715 is about 44.4315321286.

Subtracting from 87715 its reverse (51778), we obtain a cube (35937 = 33³).

The spelling of 87715 in words is "eighty-seven thousand, seven hundred fifteen".