769664447 has 2 divisors, whose sum is σ = 769664448. Its totient is φ = 769664446.

The previous prime is 769664411. The next prime is 769664509. The reversal of 769664447 is 744466967.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 769664447 - 2⁶ = 769664383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769664747) 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, 384832223 + 384832224.

It is an arithmetic number, because the mean of its divisors is an integer number (384832224).

Almost surely, 2^769664447 is an apocalyptic number.

769664447 is a deficient number, since it is larger than the sum of its proper divisors (1).

769664447 is an equidigital number, since it uses as much as digits as its factorization.

769664447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 53.

The square root of 769664447 is about 27742.8269467983. The cubic root of 769664447 is about 916.4324848102.

The spelling of 769664447 in words is "seven hundred sixty-nine million, six hundred sixty-four thousand, four hundred forty-seven".