395668733 has 2 divisors, whose sum is σ = 395668734. Its totient is φ = 395668732.

The previous prime is 395668703. The next prime is 395668751. The reversal of 395668733 is 337866593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381733444 + 13935289 = 19538^2 + 3733^2 .

It is an emirp because it is prime and its reverse (337866593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395668733 - 2⁸ = 395668477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395668703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197834366 + 197834367.

It is an arithmetic number, because the mean of its divisors is an integer number (197834367).

Almost surely, 2^395668733 is an apocalyptic number.

It is an amenable number.

395668733 is a deficient number, since it is larger than the sum of its proper divisors (1).

395668733 is an equidigital number, since it uses as much as digits as its factorization.

395668733 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 395668733 is about 19891.4236041566. The cubic root of 395668733 is about 734.1372220040.

The spelling of 395668733 in words is "three hundred ninety-five million, six hundred sixty-eight thousand, seven hundred thirty-three".