769342991 has 2 divisors, whose sum is σ = 769342992. Its totient is φ = 769342990.

The previous prime is 769342979. The next prime is 769342993. The reversal of 769342991 is 199243967.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 769342991 - 2¹⁸ = 769080847 is a prime.

Together with 769342993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769342993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384671495 + 384671496.

It is an arithmetic number, because the mean of its divisors is an integer number (384671496).

Almost surely, 2^769342991 is an apocalyptic number.

769342991 is a deficient number, since it is larger than the sum of its proper divisors (1).

769342991 is an equidigital number, since it uses as much as digits as its factorization.

769342991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 769342991 is about 27737.0328441959. The cubic root of 769342991 is about 916.3048821281.

The spelling of 769342991 in words is "seven hundred sixty-nine million, three hundred forty-two thousand, nine hundred ninety-one".