394446373 has 2 divisors, whose sum is σ = 394446374. Its totient is φ = 394446372.

The previous prime is 394446361. The next prime is 394446407. The reversal of 394446373 is 373644493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 394300449 + 145924 = 19857^2 + 382^2 .

It is an emirp because it is prime and its reverse (373644493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394446373 - 2⁵ = 394446341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394446473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197223186 + 197223187.

It is an arithmetic number, because the mean of its divisors is an integer number (197223187).

Almost surely, 2^394446373 is an apocalyptic number.

It is an amenable number.

394446373 is a deficient number, since it is larger than the sum of its proper divisors (1).

394446373 is an equidigital number, since it uses as much as digits as its factorization.

394446373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 43.

The square root of 394446373 is about 19860.6740318651. The cubic root of 394446373 is about 733.3804393753.

The spelling of 394446373 in words is "three hundred ninety-four million, four hundred forty-six thousand, three hundred seventy-three".