18859085 has 16 divisors (see below), whose sum is σ = 26564736. Its totient is φ = 12581568.

The previous prime is 18859063. The next prime is 18859111. The reversal of 18859085 is 58095881.

It is a cyclic number.

It is not a de Polignac number, because 18859085 - 2¹⁶ = 18793549 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5987 + ... + 8576.

It is an arithmetic number, because the mean of its divisors is an integer number (1660296).

Almost surely, 2^18859085 is an apocalyptic number.

It is an amenable number.

18859085 is a deficient number, since it is larger than the sum of its proper divisors (7705651).

18859085 is a wasteful number, since it uses less digits than its factorization.

18859085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14612.

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 18859085 is about 4342.7048023093. The cubic root of 18859085 is about 266.1788468789.

The spelling of 18859085 in words is "eighteen million, eight hundred fifty-nine thousand, eighty-five".