2068591 has 4 divisors (see below), whose sum is σ = 2364112. Its totient is φ = 1773072.

The previous prime is 2068589. The next prime is 2068607. The reversal of 2068591 is 1958602.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2068591 - 2¹ = 2068589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068501) 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, 147750 + ... + 147763.

It is an arithmetic number, because the mean of its divisors is an integer number (591028).

2^2068591 is an apocalyptic number.

2068591 is a deficient number, since it is larger than the sum of its proper divisors (295521).

2068591 is an equidigital number, since it uses as much as digits as its factorization.

2068591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295520.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2068591 is about 1438.2597122912. The cubic root of 2068591 is about 127.4162669495.

The spelling of 2068591 in words is "two million, sixty-eight thousand, five hundred ninety-one".