791869313 has 2 divisors, whose sum is σ = 791869314. Its totient is φ = 791869312.

The previous prime is 791869307. The next prime is 791869349. The reversal of 791869313 is 313968197.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586463089 + 205406224 = 24217^2 + 14332^2 .

It is a cyclic number.

It is not a de Polignac number, because 791869313 - 2⁶ = 791869249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (791869513) 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, 395934656 + 395934657.

It is an arithmetic number, because the mean of its divisors is an integer number (395934657).

Almost surely, 2^791869313 is an apocalyptic number.

It is an amenable number.

791869313 is a deficient number, since it is larger than the sum of its proper divisors (1).

791869313 is an equidigital number, since it uses as much as digits as its factorization.

791869313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 791869313 is about 28140.1725829818. The cubic root of 791869313 is about 925.1621095963.

The spelling of 791869313 in words is "seven hundred ninety-one million, eight hundred sixty-nine thousand, three hundred thirteen".