2744865 has 24 divisors (see below), whose sum is σ = 4798248. Its totient is φ = 1451520.

The previous prime is 2744783. The next prime is 2744867. The reversal of 2744865 is 5684472.

It can be written as a sum of positive squares in 4 ways, for example, as 51984 + 2692881 = 228^2 + 1641^2 .

It is not a de Polignac number, because 2744865 - 2¹³ = 2736673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2744867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7977 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (199927).

2^2744865 is an apocalyptic number.

It is an amenable number.

2744865 is a deficient number, since it is larger than the sum of its proper divisors (2053383).

2744865 is a wasteful number, since it uses less digits than its factorization.

2744865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2744865 is about 1656.7634109914. The cubic root of 2744865 is about 140.0147093388.

The spelling of 2744865 in words is "two million, seven hundred forty-four thousand, eight hundred sixty-five".