765590093 has 2 divisors, whose sum is σ = 765590094. Its totient is φ = 765590092.

The previous prime is 765590071. The next prime is 765590131. The reversal of 765590093 is 390095567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504541444 + 261048649 = 22462^2 + 16157^2 .

It is a cyclic number.

It is not a de Polignac number, because 765590093 - 2¹⁸ = 765327949 is a prime.

It is a super-2 number, since 2×765590093² = 1172256380999497298, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (765590893) 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, 382795046 + 382795047.

It is an arithmetic number, because the mean of its divisors is an integer number (382795047).

Almost surely, 2^765590093 is an apocalyptic number.

It is an amenable number.

765590093 is a deficient number, since it is larger than the sum of its proper divisors (1).

765590093 is an equidigital number, since it uses as much as digits as its factorization.

765590093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 765590093 is about 27669.2987442761. The cubic root of 765590093 is about 914.8125241233.

The spelling of 765590093 in words is "seven hundred sixty-five million, five hundred ninety thousand, ninety-three".