87532685 has 12 divisors (see below), whose sum is σ = 108542844. Its totient is φ = 67763520.

The previous prime is 87532651. The next prime is 87532693. The reversal of 87532685 is 58623578.

It can be written as a sum of positive squares in 2 ways, for example, as 25532809 + 61999876 = 5053^2 + 7874^2 .

It is not a de Polignac number, because 87532685 - 2⁸ = 87532429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4304 + ... + 13913.

It is an arithmetic number, because the mean of its divisors is an integer number (9045237).

Almost surely, 2^87532685 is an apocalyptic number.

It is an amenable number.

87532685 is a deficient number, since it is larger than the sum of its proper divisors (21010159).

87532685 is a wasteful number, since it uses less digits than its factorization.

87532685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18284 (or 18253 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 87532685 is about 9355.8903905508. The cubic root of 87532685 is about 444.0072723561.

The spelling of 87532685 in words is "eighty-seven million, five hundred thirty-two thousand, six hundred eighty-five".