396444361 has 2 divisors, whose sum is σ = 396444362. Its totient is φ = 396444360.

The previous prime is 396444317. The next prime is 396444371. The reversal of 396444361 is 163444693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324720400 + 71723961 = 18020^2 + 8469^2 .

It is a cyclic number.

It is not a de Polignac number, because 396444361 - 2¹³ = 396436169 is a prime.

It is not a weakly prime, because it can be changed into another prime (396444371) 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, 198222180 + 198222181.

It is an arithmetic number, because the mean of its divisors is an integer number (198222181).

Almost surely, 2^396444361 is an apocalyptic number.

It is an amenable number.

396444361 is a deficient number, since it is larger than the sum of its proper divisors (1).

396444361 is an equidigital number, since it uses as much as digits as its factorization.

396444361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 40.

The square root of 396444361 is about 19910.9106019790. The cubic root of 396444361 is about 734.6166177433.

The spelling of 396444361 in words is "three hundred ninety-six million, four hundred forty-four thousand, three hundred sixty-one".