1380793 has 2 divisors, whose sum is σ = 1380794. Its totient is φ = 1380792.

The previous prime is 1380781. The next prime is 1380811. The reversal of 1380793 is 3970831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 28224 = 1163^2 + 168^2 .

It is an emirp because it is prime and its reverse (3970831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380793 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1380763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690396 + 690397.

It is an arithmetic number, because the mean of its divisors is an integer number (690397).

2^1380793 is an apocalyptic number.

It is an amenable number.

1380793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380793 is an equidigital number, since it uses as much as digits as its factorization.

1380793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1380793 is about 1175.0714871871. The cubic root of 1380793 is about 111.3549495679.

Adding to 1380793 its product of nonzero digits (4536), we get a square (1385329 = 1177²).

The spelling of 1380793 in words is "one million, three hundred eighty thousand, seven hundred ninety-three".