2743321 has 4 divisors (see below), whose sum is σ = 3135232. Its totient is φ = 2351412.

The previous prime is 2743297. The next prime is 2743381. The reversal of 2743321 is 1233472.

2743321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2743321 - 2⁵ = 2743289 is a prime.

It is a super-3 number, since 3×2743321³ = 61937138742433395483, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2743292 and 2743301.

It is not an unprimeable number, because it can be changed into a prime (2743381) 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 3 ways as a sum of consecutive naturals, for example, 195945 + ... + 195958.

It is an arithmetic number, because the mean of its divisors is an integer number (783808).

2^2743321 is an apocalyptic number.

It is an amenable number.

2743321 is a deficient number, since it is larger than the sum of its proper divisors (391911).

2743321 is an equidigital number, since it uses as much as digits as its factorization.

2743321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391910.

The product of its digits is 1008, while the sum is 22.

The square root of 2743321 is about 1656.2973766809. The cubic root of 2743321 is about 139.9884514283.

Adding to 2743321 its reverse (1233472), we get a palindrome (3976793).

The spelling of 2743321 in words is "two million, seven hundred forty-three thousand, three hundred twenty-one".