2744257 has 2 divisors, whose sum is σ = 2744258. Its totient is φ = 2744256.

The previous prime is 2744243. The next prime is 2744263. The reversal of 2744257 is 7524472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962801 + 781456 = 1401^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 2744257 - 2⁷ = 2744129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2744237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372128 + 1372129.

It is an arithmetic number, because the mean of its divisors is an integer number (1372129).

2^2744257 is an apocalyptic number.

It is an amenable number.

2744257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2744257 is an equidigital number, since it uses as much as digits as its factorization.

2744257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15680, while the sum is 31.

The square root of 2744257 is about 1656.5799105386. The cubic root of 2744257 is about 140.0043706119.

The spelling of 2744257 in words is "two million, seven hundred forty-four thousand, two hundred fifty-seven".