1388743 has 2 divisors, whose sum is σ = 1388744. Its totient is φ = 1388742.

The previous prime is 1388719. The next prime is 1388773. The reversal of 1388743 is 3478831.

It is a weak prime.

It is an emirp because it is prime and its reverse (3478831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1388743 - 2¹³ = 1380551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1388699 and 1388708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694371 + 694372.

It is an arithmetic number, because the mean of its divisors is an integer number (694372).

2^1388743 is an apocalyptic number.

1388743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388743 is an equidigital number, since it uses as much as digits as its factorization.

1388743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 1388743 is about 1178.4494049385. The cubic root of 1388743 is about 111.5682516971.

The spelling of 1388743 in words is "one million, three hundred eighty-eight thousand, seven hundred forty-three".