999085 has 8 divisors (see below), whose sum is σ = 1205856. Its totient is φ = 794640.

The previous prime is 999083. The next prime is 999091. The reversal of 999085 is 580999.

999085 = T₄₄₂ + T₄₄₃ + ... + T₄₅₁.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 999085 - 2¹ = 999083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (150732).

2⁹⁹⁹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

999085 is a deficient number, since it is larger than the sum of its proper divisors (206771).

999085 is a wasteful number, since it uses less digits than its factorization.

999085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 999085 is about 999.5423952990. The cubic root of 999085 is about 99.9694906928.

The spelling of 999085 in words is "nine hundred ninety-nine thousand, eighty-five".