87685125 has 64 divisors (see below), whose sum is σ = 164885760. Its totient is φ = 40992000.

The previous prime is 87685097. The next prime is 87685141. The reversal of 87685125 is 52158678.

It is not a de Polignac number, because 87685125 - 2⁹ = 87684613 is a prime.

It is a super-3 number, since 3×87685125³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 119259 + ... + 119991.

It is an arithmetic number, because the mean of its divisors is an integer number (2576340).

Almost surely, 2^87685125 is an apocalyptic number.

It is an amenable number.

87685125 is a deficient number, since it is larger than the sum of its proper divisors (77200635).

87685125 is a wasteful number, since it uses less digits than its factorization.

87685125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 781 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 87685125 is about 9364.0335860141. The cubic root of 87685125 is about 444.2648721896.

The spelling of 87685125 in words is "eighty-seven million, six hundred eighty-five thousand, one hundred twenty-five".