2641843 has 4 divisors (see below), whose sum is σ = 2686680. Its totient is φ = 2597008.

The previous prime is 2641841. The next prime is 2641879. The reversal of 2641843 is 3481462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3481462 = 2 ⋅1740731.

It is a cyclic number.

It is not a de Polignac number, because 2641843 - 2¹ = 2641841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2641841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22330 + ... + 22447.

It is an arithmetic number, because the mean of its divisors is an integer number (671670).

2^2641843 is an apocalyptic number.

2641843 is a deficient number, since it is larger than the sum of its proper divisors (44837).

2641843 is an equidigital number, since it uses as much as digits as its factorization.

2641843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44836.

The product of its digits is 4608, while the sum is 28.

The square root of 2641843 is about 1625.3747260247. The cubic root of 2641843 is about 138.2406185080.

The spelling of 2641843 in words is "two million, six hundred forty-one thousand, eight hundred forty-three".