765830113 has 2 divisors, whose sum is σ = 765830114. Its totient is φ = 765830112.

The previous prime is 765830111. The next prime is 765830119. The reversal of 765830113 is 311038567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452115169 + 313714944 = 21263^2 + 17712^2 .

It is a cyclic number.

It is not a de Polignac number, because 765830113 - 2¹ = 765830111 is a prime.

Together with 765830111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (765830111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382915056 + 382915057.

It is an arithmetic number, because the mean of its divisors is an integer number (382915057).

Almost surely, 2^765830113 is an apocalyptic number.

It is an amenable number.

765830113 is a deficient number, since it is larger than the sum of its proper divisors (1).

765830113 is an equidigital number, since it uses as much as digits as its factorization.

765830113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 765830113 is about 27673.6357025961. The cubic root of 765830113 is about 914.9081150329.

The spelling of 765830113 in words is "seven hundred sixty-five million, eight hundred thirty thousand, one hundred thirteen".