395791313 has 2 divisors, whose sum is σ = 395791314. Its totient is φ = 395791312.

The previous prime is 395791289. The next prime is 395791369. The reversal of 395791313 is 313197593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360126529 + 35664784 = 18977^2 + 5972^2 .

It is a cyclic number.

It is not a de Polignac number, because 395791313 - 2²⁶ = 328682449 is a prime.

It is not a weakly prime, because it can be changed into another prime (395791213) 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, 197895656 + 197895657.

It is an arithmetic number, because the mean of its divisors is an integer number (197895657).

Almost surely, 2^395791313 is an apocalyptic number.

It is an amenable number.

395791313 is a deficient number, since it is larger than the sum of its proper divisors (1).

395791313 is an equidigital number, since it uses as much as digits as its factorization.

395791313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76545, while the sum is 41.

The square root of 395791313 is about 19894.5045929774. The cubic root of 395791313 is about 734.2130272098.

The spelling of 395791313 in words is "three hundred ninety-five million, seven hundred ninety-one thousand, three hundred thirteen".