768823667 has 2 divisors, whose sum is σ = 768823668. Its totient is φ = 768823666.

The previous prime is 768823661. The next prime is 768823709. The reversal of 768823667 is 766328867.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-768823667 is a prime.

It is a super-3 number, since 3×768823667³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (768823661) 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, 384411833 + 384411834.

It is an arithmetic number, because the mean of its divisors is an integer number (384411834).

Almost surely, 2^768823667 is an apocalyptic number.

768823667 is a deficient number, since it is larger than the sum of its proper divisors (1).

768823667 is an equidigital number, since it uses as much as digits as its factorization.

768823667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 53.

The square root of 768823667 is about 27727.6697001389. The cubic root of 768823667 is about 916.0986601810.

The spelling of 768823667 in words is "seven hundred sixty-eight million, eight hundred twenty-three thousand, six hundred sixty-seven".