89887618 has 16 divisors (see below), whose sum is σ = 136461024. Its totient is φ = 44404000.

The previous prime is 89887607. The next prime is 89887643. The reversal of 89887618 is 81678898.

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 7 ways as a sum of consecutive naturals, for example, 68121 + ... + 69427.

It is an arithmetic number, because the mean of its divisors is an integer number (8528814).

Almost surely, 2^89887618 is an apocalyptic number.

89887618 is a deficient number, since it is larger than the sum of its proper divisors (46573406).

89887618 is a wasteful number, since it uses less digits than its factorization.

89887618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697.

The product of its digits is 1548288, while the sum is 55.

The square root of 89887618 is about 9480.9080788709. The cubic root of 89887618 is about 447.9538676190.

The spelling of 89887618 in words is "eighty-nine million, eight hundred eighty-seven thousand, six hundred eighteen".