769375457 has 2 divisors, whose sum is σ = 769375458. Its totient is φ = 769375456.

The previous prime is 769375429. The next prime is 769375459. The reversal of 769375457 is 754573967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684293281 + 85082176 = 26159^2 + 9224^2 .

It is a cyclic number.

It is not a de Polignac number, because 769375457 - 2¹⁰ = 769374433 is a prime.

Together with 769375459, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 769375399 and 769375408.

It is not a weakly prime, because it can be changed into another prime (769375459) 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, 384687728 + 384687729.

It is an arithmetic number, because the mean of its divisors is an integer number (384687729).

Almost surely, 2^769375457 is an apocalyptic number.

It is an amenable number.

769375457 is a deficient number, since it is larger than the sum of its proper divisors (1).

769375457 is an equidigital number, since it uses as much as digits as its factorization.

769375457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5556600, while the sum is 53.

The square root of 769375457 is about 27737.6180844715. The cubic root of 769375457 is about 916.3177711932.

The spelling of 769375457 in words is "seven hundred sixty-nine million, three hundred seventy-five thousand, four hundred fifty-seven".