395321 has 2 divisors, whose sum is σ = 395322. Its totient is φ = 395320.

The previous prime is 395309. The next prime is 395323. The reversal of 395321 is 123593.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346921 + 48400 = 589^2 + 220^2 .

It is an emirp because it is prime and its reverse (123593) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395321 is a prime.

Together with 395323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (395323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197660 + 197661.

It is an arithmetic number, because the mean of its divisors is an integer number (197661).

2³⁹⁵³²¹ is an apocalyptic number.

It is an amenable number.

395321 is a deficient number, since it is larger than the sum of its proper divisors (1).

395321 is an equidigital number, since it uses as much as digits as its factorization.

395321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 23.

The square root of 395321 is about 628.7455765252. The cubic root of 395321 is about 73.3922093759.

The spelling of 395321 in words is "three hundred ninety-five thousand, three hundred twenty-one".