1380727 has 2 divisors, whose sum is σ = 1380728. Its totient is φ = 1380726.

The previous prime is 1380721. The next prime is 1380763. The reversal of 1380727 is 7270831.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7270831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1380727 - 2¹¹ = 1378679 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1380695 and 1380704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380721) 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 as a sum of consecutive naturals, namely, 690363 + 690364.

It is an arithmetic number, because the mean of its divisors is an integer number (690364).

2^1380727 is an apocalyptic number.

1380727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380727 is an equidigital number, since it uses as much as digits as its factorization.

1380727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1380727 is about 1175.0434034537. The cubic root of 1380727 is about 111.3531753353.

The spelling of 1380727 in words is "one million, three hundred eighty thousand, seven hundred twenty-seven".