2016855 has 12 divisors (see below), whose sum is σ = 3495960. Its totient is φ = 1075632.

The previous prime is 2016853. The next prime is 2016857. The reversal of 2016855 is 5586102.

It is an interprime number because it is at equal distance from previous prime (2016853) and next prime (2016857).

It is not a de Polignac number, because 2016855 - 2¹ = 2016853 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 0 + 1 + 6⁶ + 8² + 5⁴ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016851) 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 11 ways as a sum of consecutive naturals, for example, 22365 + ... + 22454.

It is an arithmetic number, because the mean of its divisors is an integer number (291330).

2^2016855 is an apocalyptic number.

2016855 is a deficient number, since it is larger than the sum of its proper divisors (1479105).

2016855 is a wasteful number, since it uses less digits than its factorization.

2016855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44830 (or 44827 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2016855 is about 1420.1602022307. The cubic root of 2016855 is about 126.3450481839.

It can be divided in two parts, 201 and 6855, that added together give a square (7056 = 84²).

The spelling of 2016855 in words is "two million, sixteen thousand, eight hundred fifty-five".