87678685 has 8 divisors (see below), whose sum is σ = 105327360. Its totient is φ = 70067664.

The previous prime is 87678671. The next prime is 87678697. The reversal of 87678685 is 58687678.

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

It is a cyclic number.

It is not a de Polignac number, because 87678685 - 2¹¹ = 87676637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4005 + ... + 13834.

It is an arithmetic number, because the mean of its divisors is an integer number (13165920).

Almost surely, 2^87678685 is an apocalyptic number.

It is an amenable number.

87678685 is a deficient number, since it is larger than the sum of its proper divisors (17648675).

87678685 is a wasteful number, since it uses less digits than its factorization.

87678685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18827.

The product of its digits is 4515840, while the sum is 55.

The square root of 87678685 is about 9363.6897107924. The cubic root of 87678685 is about 444.2539956363.

The spelling of 87678685 in words is "eighty-seven million, six hundred seventy-eight thousand, six hundred eighty-five".