765660983 has 2 divisors, whose sum is σ = 765660984. Its totient is φ = 765660982.

The previous prime is 765660953. The next prime is 765660991. The reversal of 765660983 is 389066567.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 765660983 - 2²² = 761466679 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 (765660953) 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, 382830491 + 382830492.

It is an arithmetic number, because the mean of its divisors is an integer number (382830492).

Almost surely, 2^765660983 is an apocalyptic number.

765660983 is a deficient number, since it is larger than the sum of its proper divisors (1).

765660983 is an equidigital number, since it uses as much as digits as its factorization.

765660983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 765660983 is about 27670.5797373311. The cubic root of 765660983 is about 914.8407590143.

The spelling of 765660983 in words is "seven hundred sixty-five million, six hundred sixty thousand, nine hundred eighty-three".