2000743 has 4 divisors (see below), whose sum is σ = 2043360. Its totient is φ = 1958128.

The previous prime is 2000731. The next prime is 2000753. The reversal of 2000743 is 3470002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3470002 = 2 ⋅1735001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000743 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 (2000753) 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, 21238 + ... + 21331.

It is an arithmetic number, because the mean of its divisors is an integer number (510840).

2^2000743 is an apocalyptic number.

2000743 is a deficient number, since it is larger than the sum of its proper divisors (42617).

2000743 is an equidigital number, since it uses as much as digits as its factorization.

2000743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42616.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 2000743 is about 1414.4762281495. The cubic root of 2000743 is about 126.0077050802.

Adding to 2000743 its reverse (3470002), we get a palindrome (5470745).

The spelling of 2000743 in words is "two million, seven hundred forty-three", and thus it is an aban number.