769256393 has 2 divisors, whose sum is σ = 769256394. Its totient is φ = 769256392.

The previous prime is 769256359. The next prime is 769256419. The reversal of 769256393 is 393652967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485232784 + 284023609 = 22028^2 + 16853^2 .

It is an emirp because it is prime and its reverse (393652967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769256393 - 2⁶ = 769256329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (769256333) 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, 384628196 + 384628197.

It is an arithmetic number, because the mean of its divisors is an integer number (384628197).

Almost surely, 2^769256393 is an apocalyptic number.

It is an amenable number.

769256393 is a deficient number, since it is larger than the sum of its proper divisors (1).

769256393 is an equidigital number, since it uses as much as digits as its factorization.

769256393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 50.

The square root of 769256393 is about 27735.4717464838. The cubic root of 769256393 is about 916.2705007799.

The spelling of 769256393 in words is "seven hundred sixty-nine million, two hundred fifty-six thousand, three hundred ninety-three".