768805357 has 2 divisors, whose sum is σ = 768805358. Its totient is φ = 768805356.

The previous prime is 768805259. The next prime is 768805421. The reversal of 768805357 is 753508867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 521026276 + 247779081 = 22826^2 + 15741^2 .

It is a cyclic number.

It is not a de Polignac number, because 768805357 - 2¹¹ = 768803309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 768805357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768805157) 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, 384402678 + 384402679.

It is an arithmetic number, because the mean of its divisors is an integer number (384402679).

Almost surely, 2^768805357 is an apocalyptic number.

It is an amenable number.

768805357 is a deficient number, since it is larger than the sum of its proper divisors (1).

768805357 is an equidigital number, since it uses as much as digits as its factorization.

768805357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 768805357 is about 27727.3395225723. The cubic root of 768805357 is about 916.0913876423.

The spelling of 768805357 in words is "seven hundred sixty-eight million, eight hundred five thousand, three hundred fifty-seven".