2643741 has 6 divisors (see below), whose sum is σ = 3818750. Its totient is φ = 1762488.

The previous prime is 2643737. The next prime is 2643743. The reversal of 2643741 is 1473462.

2643741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1572516 + 1071225 = 1254^2 + 1035^2 .

It is not a de Polignac number, because 2643741 - 2² = 2643737 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 6³ + 4³ + 3¹³ + 7² + 4¹⁰ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146866 + ... + 146883.

2^2643741 is an apocalyptic number.

It is an amenable number.

2643741 is a deficient number, since it is larger than the sum of its proper divisors (1175009).

2643741 is a wasteful number, since it uses less digits than its factorization.

2643741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293755 (or 293752 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2643741 is about 1625.9584865549. The cubic root of 2643741 is about 138.2737163472.

It can be divided in two parts, 264 and 3741, that added together give a triangular number (4005 = T₈₉).

The spelling of 2643741 in words is "two million, six hundred forty-three thousand, seven hundred forty-one".