2068891 has 12 divisors (see below), whose sum is σ = 2386584. Its totient is φ = 1778400.

The previous prime is 2068877. The next prime is 2068897. The reversal of 2068891 is 1988602.

It is not a de Polignac number, because 2068891 - 2⁷ = 2068763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068897) 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, 3711 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (198882).

2^2068891 is an apocalyptic number.

2068891 is a deficient number, since it is larger than the sum of its proper divisors (317693).

2068891 is a wasteful number, since it uses less digits than its factorization.

2068891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2068891 is about 1438.3640012181. The cubic root of 2068891 is about 127.4224262197.

The spelling of 2068891 in words is "two million, sixty-eight thousand, eight hundred ninety-one".