8987855 has 16 divisors (see below), whose sum is σ = 11664480. Its totient is φ = 6625152.

The previous prime is 8987851. The next prime is 8987911. The reversal of 8987855 is 5587898.

It is a cyclic number.

It is not a de Polignac number, because 8987855 - 2² = 8987851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8987851) 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, 2237 + ... + 4793.

It is an arithmetic number, because the mean of its divisors is an integer number (729030).

Almost surely, 2^8987855 is an apocalyptic number.

8987855 is a deficient number, since it is larger than the sum of its proper divisors (2676625).

8987855 is a wasteful number, since it uses less digits than its factorization.

8987855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618.

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

The square root of 8987855 is about 2997.9751499971. The cubic root of 8987855 is about 207.9147749346.

The spelling of 8987855 in words is "eight million, nine hundred eighty-seven thousand, eight hundred fifty-five".