2016871 has 4 divisors (see below), whose sum is σ = 2023000. Its totient is φ = 2010744.

The previous prime is 2016857. The next prime is 2016877. The reversal of 2016871 is 1786102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1786102 = 2 ⋅893051.

It is a cyclic number.

It is not a de Polignac number, because 2016871 - 2⁹ = 2016359 is a prime.

It is a Duffinian number.

2016871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541 + ... + 3238.

It is an arithmetic number, because the mean of its divisors is an integer number (505750).

2^2016871 is an apocalyptic number.

2016871 is a deficient number, since it is larger than the sum of its proper divisors (6129).

2016871 is an equidigital number, since it uses as much as digits as its factorization.

2016871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2016871 is about 1420.1658353868. The cubic root of 2016871 is about 126.3453822874.

The spelling of 2016871 in words is "two million, sixteen thousand, eight hundred seventy-one".