1078389743 has 2 divisors, whose sum is σ = 1078389744. Its totient is φ = 1078389742.

The previous prime is 1078389691. The next prime is 1078389779. The reversal of 1078389743 is 3479838701.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078389743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1078389691 and 1078389700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078389943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539194871 + 539194872.

It is an arithmetic number, because the mean of its divisors is an integer number (539194872).

Almost surely, 2^1078389743 is an apocalyptic number.

1078389743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078389743 is an equidigital number, since it uses as much as digits as its factorization.

1078389743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 1078389743 is about 32838.8450314563. The cubic root of 1078389743 is about 1025.4754068314.

The spelling of 1078389743 in words is "one billion, seventy-eight million, three hundred eighty-nine thousand, seven hundred forty-three".