768209293 has 2 divisors, whose sum is σ = 768209294. Its totient is φ = 768209292.

The previous prime is 768209291. The next prime is 768209297. The reversal of 768209293 is 392902867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 717543369 + 50665924 = 26787^2 + 7118^2 .

It is a cyclic number.

It is not a de Polignac number, because 768209293 - 2¹ = 768209291 is a prime.

Together with 768209291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768209291) 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, 384104646 + 384104647.

It is an arithmetic number, because the mean of its divisors is an integer number (384104647).

Almost surely, 2^768209293 is an apocalyptic number.

It is an amenable number.

768209293 is a deficient number, since it is larger than the sum of its proper divisors (1).

768209293 is an equidigital number, since it uses as much as digits as its factorization.

768209293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 768209293 is about 27716.5887691830. The cubic root of 768209293 is about 915.8545742225.

The spelling of 768209293 in words is "seven hundred sixty-eight million, two hundred nine thousand, two hundred ninety-three".