768634369 has 2 divisors, whose sum is σ = 768634370. Its totient is φ = 768634368.

The previous prime is 768634327. The next prime is 768634397. The reversal of 768634369 is 963436867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419430400 + 349203969 = 20480^2 + 18687^2 .

It is a cyclic number.

It is not a de Polignac number, because 768634369 - 2¹⁷ = 768503297 is a prime.

It is a super-2 number, since 2×768634369² = 1181597586416056322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (768634169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384317184 + 384317185.

It is an arithmetic number, because the mean of its divisors is an integer number (384317185).

Almost surely, 2^768634369 is an apocalyptic number.

It is an amenable number.

768634369 is a deficient number, since it is larger than the sum of its proper divisors (1).

768634369 is an equidigital number, since it uses as much as digits as its factorization.

768634369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 52.

The square root of 768634369 is about 27724.2559683754. The cubic root of 768634369 is about 916.0234674390.

The spelling of 768634369 in words is "seven hundred sixty-eight million, six hundred thirty-four thousand, three hundred sixty-nine".