765550969 has 2 divisors, whose sum is σ = 765550970. Its totient is φ = 765550968.

The previous prime is 765550963. The next prime is 765550999. The reversal of 765550969 is 969055567.

765550969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 496754944 + 268796025 = 22288^2 + 16395^2 .

It is a cyclic number.

It is not a de Polignac number, because 765550969 - 2¹¹ = 765548921 is a prime.

It is a super-2 number, since 2×765550969² = 1172136572273677922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (765550963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382775484 + 382775485.

It is an arithmetic number, because the mean of its divisors is an integer number (382775485).

Almost surely, 2^765550969 is an apocalyptic number.

It is an amenable number.

765550969 is a deficient number, since it is larger than the sum of its proper divisors (1).

765550969 is an equidigital number, since it uses as much as digits as its factorization.

765550969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2551500, while the sum is 52.

The square root of 765550969 is about 27668.5917422626. The cubic root of 765550969 is about 914.7969406167.

The spelling of 765550969 in words is "seven hundred sixty-five million, five hundred fifty thousand, nine hundred sixty-nine".