9999085 has 4 divisors (see below), whose sum is σ = 11998908. Its totient is φ = 7999264.

The previous prime is 9999083. The next prime is 9999161. The reversal of 9999085 is 5809999.

9999085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3511876 + 6487209 = 1874^2 + 2547^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999085 - 2¹ = 9999083 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999904 + ... + 999913.

It is an arithmetic number, because the mean of its divisors is an integer number (2999727).

Almost surely, 2^9999085 is an apocalyptic number.

It is an amenable number.

9999085 is a deficient number, since it is larger than the sum of its proper divisors (1999823).

9999085 is a wasteful number, since it uses less digits than its factorization.

9999085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999822.

The product of its (nonzero) digits is 262440, while the sum is 49.

The square root of 9999085 is about 3162.1329826559. The cubic root of 9999085 is about 215.4368977770.

The spelling of 9999085 in words is "nine million, nine hundred ninety-nine thousand, eighty-five".