1914568393 has 2 divisors, whose sum is σ = 1914568394. Its totient is φ = 1914568392.

The previous prime is 1914568363. The next prime is 1914568399. The reversal of 1914568393 is 3938654191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1160901184 + 753667209 = 34072^2 + 27453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914568393 - 2⁹ = 1914567881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1914568399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957284196 + 957284197.

It is an arithmetic number, because the mean of its divisors is an integer number (957284197).

Almost surely, 2^1914568393 is an apocalyptic number.

It is an amenable number.

1914568393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914568393 is an equidigital number, since it uses as much as digits as its factorization.

1914568393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 49.

The square root of 1914568393 is about 43755.7812523100. The cubic root of 1914568393 is about 1241.7198630803.

The spelling of 1914568393 in words is "one billion, nine hundred fourteen million, five hundred sixty-eight thousand, three hundred ninety-three".