2744321 has 4 divisors (see below), whose sum is σ = 2752944. Its totient is φ = 2735700.

The previous prime is 2744317. The next prime is 2744323. The reversal of 2744321 is 1234472.

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 a cyclic number.

It is not a de Polignac number, because 2744321 - 2² = 2744317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2744323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3815 + ... + 4476.

It is an arithmetic number, because the mean of its divisors is an integer number (688236).

It is a Proth number, since it is equal to 335 ⋅ 2¹³ + 1 and 335 < 2¹³.

2^2744321 is an apocalyptic number.

It is an amenable number.

2744321 is a deficient number, since it is larger than the sum of its proper divisors (8623).

2744321 is an equidigital number, since it uses as much as digits as its factorization.

2744321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8622.

The product of its digits is 1344, while the sum is 23.

The square root of 2744321 is about 1656.5992273329. The cubic root of 2744321 is about 140.0054589708.

Adding to 2744321 its reverse (1234472), we get a palindrome (3978793).

The spelling of 2744321 in words is "two million, seven hundred forty-four thousand, three hundred twenty-one".