765338393 has 2 divisors, whose sum is σ = 765338394. Its totient is φ = 765338392.

The previous prime is 765338389. The next prime is 765338401. The reversal of 765338393 is 393833567.

It is a happy number.

765338393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533933449 + 231404944 = 23107^2 + 15212^2 .

It is an emirp because it is prime and its reverse (393833567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 765338393 - 2² = 765338389 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (765338993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382669196 + 382669197.

It is an arithmetic number, because the mean of its divisors is an integer number (382669197).

Almost surely, 2^765338393 is an apocalyptic number.

It is an amenable number.

765338393 is a deficient number, since it is larger than the sum of its proper divisors (1).

765338393 is an equidigital number, since it uses as much as digits as its factorization.

765338393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 47.

The square root of 765338393 is about 27664.7500079072. The cubic root of 765338393 is about 914.7122600470.

The spelling of 765338393 in words is "seven hundred sixty-five million, three hundred thirty-eight thousand, three hundred ninety-three".