395666597 has 2 divisors, whose sum is σ = 395666598. Its totient is φ = 395666596.

The previous prime is 395666519. The next prime is 395666627. The reversal of 395666597 is 795666593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376709281 + 18957316 = 19409^2 + 4354^2 .

It is an emirp because it is prime and its reverse (795666593) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395666597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395666897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197833298 + 197833299.

It is an arithmetic number, because the mean of its divisors is an integer number (197833299).

Almost surely, 2^395666597 is an apocalyptic number.

It is an amenable number.

395666597 is a deficient number, since it is larger than the sum of its proper divisors (1).

395666597 is an equidigital number, since it uses as much as digits as its factorization.

395666597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9185400, while the sum is 56.

The square root of 395666597 is about 19891.3699126028. The cubic root of 395666597 is about 734.1359009326.

The spelling of 395666597 in words is "three hundred ninety-five million, six hundred sixty-six thousand, five hundred ninety-seven".