1244393 has 2 divisors, whose sum is σ = 1244394. Its totient is φ = 1244392.

The previous prime is 1244381. The next prime is 1244401. The reversal of 1244393 is 3934421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868624 + 375769 = 932^2 + 613^2 .

It is an emirp because it is prime and its reverse (3934421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1244393 - 2¹⁰ = 1243369 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1244333) 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, 622196 + 622197.

It is an arithmetic number, because the mean of its divisors is an integer number (622197).

2^1244393 is an apocalyptic number.

It is an amenable number.

1244393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244393 is an equidigital number, since it uses as much as digits as its factorization.

1244393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 1244393 is about 1115.5236438552. The cubic root of 1244393 is about 107.5604275370.

The spelling of 1244393 in words is "one million, two hundred forty-four thousand, three hundred ninety-three".