395944673 has 2 divisors, whose sum is σ = 395944674. Its totient is φ = 395944672.

The previous prime is 395944663. The next prime is 395944691. The reversal of 395944673 is 376449593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395691664 + 253009 = 19892^2 + 503^2 .

It is a cyclic number.

It is not a de Polignac number, because 395944673 - 2¹⁰ = 395943649 is a prime.

It is a super-3 number, since 3×395944673³ (a number of 27 digits) contains 333 as substring.

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 (395944613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197972336 + 197972337.

It is an arithmetic number, because the mean of its divisors is an integer number (197972337).

Almost surely, 2^395944673 is an apocalyptic number.

It is an amenable number.

395944673 is a deficient number, since it is larger than the sum of its proper divisors (1).

395944673 is an equidigital number, since it uses as much as digits as its factorization.

395944673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 50.

The square root of 395944673 is about 19898.3585503930. The cubic root of 395944673 is about 734.3078451657.

The spelling of 395944673 in words is "three hundred ninety-five million, nine hundred forty-four thousand, six hundred seventy-three".