806985 has 24 divisors (see below), whose sum is σ = 1422720. Its totient is φ = 423072.

The previous prime is 806977. The next prime is 806999. The reversal of 806985 is 589608.

It is not a de Polignac number, because 806985 - 2³ = 806977 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 806985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3442 + ... + 3668.

It is an arithmetic number, because the mean of its divisors is an integer number (59280).

2⁸⁰⁶⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

806985 is a deficient number, since it is larger than the sum of its proper divisors (615735).

806985 is a wasteful number, since it uses less digits than its factorization.

806985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 806985 is about 898.3234384118. The cubic root of 806985 is about 93.1011732806.

The spelling of 806985 in words is "eight hundred six thousand, nine hundred eighty-five".