8855987 has 16 divisors (see below), whose sum is σ = 10739712. Its totient is φ = 7140960.

The previous prime is 8855981. The next prime is 8856019. The reversal of 8855987 is 7895588.

It is a cyclic number.

It is not a de Polignac number, because 8855987 - 2¹⁸ = 8593843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8855981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7478 + ... + 8580.

It is an arithmetic number, because the mean of its divisors is an integer number (671232).

Almost surely, 2^8855987 is an apocalyptic number.

8855987 is a deficient number, since it is larger than the sum of its proper divisors (1883725).

8855987 is a wasteful number, since it uses less digits than its factorization.

8855987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its digits is 806400, while the sum is 50.

The square root of 8855987 is about 2975.9010400213. The cubic root of 8855987 is about 206.8929331880.

The spelling of 8855987 in words is "eight million, eight hundred fifty-five thousand, nine hundred eighty-seven".