9861085 has 16 divisors (see below), whose sum is σ = 12821760. Its totient is φ = 7237440.

The previous prime is 9861079. The next prime is 9861109. The reversal of 9861085 is 5801689.

It is not a de Polignac number, because 9861085 - 2⁵ = 9861053 is a prime.

9861085 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13356 + ... + 14074.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^9861085 is an apocalyptic number.

It is an amenable number.

9861085 is a deficient number, since it is larger than the sum of its proper divisors (2960675).

9861085 is a wasteful number, since it uses less digits than its factorization.

9861085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 9861085 is about 3140.2364560651. The cubic root of 9861085 is about 214.4412025982.

The spelling of 9861085 in words is "nine million, eight hundred sixty-one thousand, eighty-five".