801085 has 4 divisors (see below), whose sum is σ = 961308. Its totient is φ = 640864.

The previous prime is 801079. The next prime is 801103. The reversal of 801085 is 580108.

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 252004 + 549081 = 502^2 + 741^2 .

It is a cyclic number.

It is not a de Polignac number, because 801085 - 2³ = 801077 is a prime.

It is a Smith number, since the sum of its digits (22) 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80104 + ... + 80113.

It is an arithmetic number, because the mean of its divisors is an integer number (240327).

2⁸⁰¹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

801085 is a deficient number, since it is larger than the sum of its proper divisors (160223).

801085 is a wasteful number, since it uses less digits than its factorization.

801085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160222.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 801085 is about 895.0335189254. The cubic root of 801085 is about 92.8737254127.

The spelling of 801085 in words is "eight hundred one thousand, eighty-five".