395466647 has 2 divisors, whose sum is σ = 395466648. Its totient is φ = 395466646.

The previous prime is 395466637. The next prime is 395466661. The reversal of 395466647 is 746664593.

It is a weak prime.

It is an emirp because it is prime and its reverse (746664593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395466647 - 2⁶ = 395466583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395466595 and 395466604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395466637) 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, 197733323 + 197733324.

It is an arithmetic number, because the mean of its divisors is an integer number (197733324).

Almost surely, 2^395466647 is an apocalyptic number.

395466647 is a deficient number, since it is larger than the sum of its proper divisors (1).

395466647 is an equidigital number, since it uses as much as digits as its factorization.

395466647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 50.

The square root of 395466647 is about 19886.3432284571. The cubic root of 395466647 is about 734.0122149739.

The spelling of 395466647 in words is "three hundred ninety-five million, four hundred sixty-six thousand, six hundred forty-seven".