2016805 has 16 divisors (see below), whose sum is σ = 2862720. Its totient is φ = 1334592.

The previous prime is 2016787. The next prime is 2016821. The reversal of 2016805 is 5086102.

It is a happy number.

It is not a de Polignac number, because 2016805 - 2⁹ = 2016293 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 22 + ... + 2008.

It is an arithmetic number, because the mean of its divisors is an integer number (178920).

2^2016805 is an apocalyptic number.

It is an amenable number.

2016805 is a deficient number, since it is larger than the sum of its proper divisors (845915).

2016805 is a wasteful number, since it uses less digits than its factorization.

2016805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2016805 is about 1420.1425984738. The cubic root of 2016805 is about 126.3440040988.

The spelling of 2016805 in words is "two million, sixteen thousand, eight hundred five".