395265617 has 2 divisors, whose sum is σ = 395265618. Its totient is φ = 395265616.

The previous prime is 395265613. The next prime is 395265697. The reversal of 395265617 is 716562593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364084561 + 31181056 = 19081^2 + 5584^2 .

It is an emirp because it is prime and its reverse (716562593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395265617 - 2² = 395265613 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (395265613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197632808 + 197632809.

It is an arithmetic number, because the mean of its divisors is an integer number (197632809).

Almost surely, 2^395265617 is an apocalyptic number.

It is an amenable number.

395265617 is a deficient number, since it is larger than the sum of its proper divisors (1).

395265617 is an equidigital number, since it uses as much as digits as its factorization.

395265617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 44.

The square root of 395265617 is about 19881.2881121923. The cubic root of 395265617 is about 733.8878189076.

The spelling of 395265617 in words is "three hundred ninety-five million, two hundred sixty-five thousand, six hundred seventeen".