765125993 has 2 divisors, whose sum is σ = 765125994. Its totient is φ = 765125992.

The previous prime is 765125971. The next prime is 765126001. The reversal of 765125993 is 399521567.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739187344 + 25938649 = 27188^2 + 5093^2 .

It is a cyclic number.

It is not a de Polignac number, because 765125993 - 2⁶ = 765125929 is a prime.

It is not a weakly prime, because it can be changed into another prime (765125093) 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, 382562996 + 382562997.

It is an arithmetic number, because the mean of its divisors is an integer number (382562997).

Almost surely, 2^765125993 is an apocalyptic number.

It is an amenable number.

765125993 is a deficient number, since it is larger than the sum of its proper divisors (1).

765125993 is an equidigital number, since it uses as much as digits as its factorization.

765125993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 510300, while the sum is 47.

The square root of 765125993 is about 27660.9109213706. The cubic root of 765125993 is about 914.6276339254.

The spelling of 765125993 in words is "seven hundred sixty-five million, one hundred twenty-five thousand, nine hundred ninety-three".