2000591 has 4 divisors (see below), whose sum is σ = 2038392. Its totient is φ = 1962792.

The previous prime is 2000573. The next prime is 2000597. The reversal of 2000591 is 1950002.

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

It is a cyclic number.

It is not a de Polignac number, because 2000591 - 2¹⁰ = 1999567 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 (2000597) 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, 18821 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (509598).

2^2000591 is an apocalyptic number.

2000591 is a deficient number, since it is larger than the sum of its proper divisors (37801).

2000591 is an equidigital number, since it uses as much as digits as its factorization.

2000591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37800.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 2000591 is about 1414.4224969930. The cubic root of 2000591 is about 126.0045139896.

Adding to 2000591 its reverse (1950002), we get a palindrome (3950593).

The spelling of 2000591 in words is "two million, five hundred ninety-one", and thus it is an aban number.