378317 has 2 divisors, whose sum is σ = 378318. Its totient is φ = 378316.

The previous prime is 378289. The next prime is 378353. The reversal of 378317 is 713873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329476 + 48841 = 574^2 + 221^2 .

378317 is a truncatable prime.

It is an emirp because it is prime and its reverse (713873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378317 - 2⁶ = 378253 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189158 + 189159.

It is an arithmetic number, because the mean of its divisors is an integer number (189159).

2³⁷⁸³¹⁷ is an apocalyptic number.

It is an amenable number.

378317 is a deficient number, since it is larger than the sum of its proper divisors (1).

378317 is an equidigital number, since it uses as much as digits as its factorization.

378317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 29.

The square root of 378317 is about 615.0747922001. The cubic root of 378317 is about 72.3244743174.

The spelling of 378317 in words is "three hundred seventy-eight thousand, three hundred seventeen".