16868811 has 16 divisors (see below), whose sum is σ = 23907744. Its totient is φ = 10543104.

The previous prime is 16868801. The next prime is 16868833. The reversal of 16868811 is 11886861.

It is not a de Polignac number, because 16868811 - 2¹¹ = 16866763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16868811.

It is not an unprimeable number, because it can be changed into a prime (16868801) by changing a digit.

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, 17535 + ... + 18471.

It is an arithmetic number, because the mean of its divisors is an integer number (1494234).

Almost surely, 2^16868811 is an apocalyptic number.

16868811 is a deficient number, since it is larger than the sum of its proper divisors (7038933).

16868811 is a wasteful number, since it uses less digits than its factorization.

16868811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310.

The product of its digits is 18432, while the sum is 39.

The square root of 16868811 is about 4107.1658111160. The cubic root of 16868811 is about 256.4650310083.

The spelling of 16868811 in words is "sixteen million, eight hundred sixty-eight thousand, eight hundred eleven".