396444317 has 2 divisors, whose sum is σ = 396444318. Its totient is φ = 396444316.

The previous prime is 396444299. The next prime is 396444361. The reversal of 396444317 is 713444693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276191161 + 120253156 = 16619^2 + 10966^2 .

It is a cyclic number.

It is not a de Polignac number, because 396444317 - 2¹⁶ = 396378781 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396444017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198222158 + 198222159.

It is an arithmetic number, because the mean of its divisors is an integer number (198222159).

Almost surely, 2^396444317 is an apocalyptic number.

It is an amenable number.

396444317 is a deficient number, since it is larger than the sum of its proper divisors (1).

396444317 is an equidigital number, since it uses as much as digits as its factorization.

396444317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 396444317 is about 19910.9094970571. The cubic root of 396444317 is about 734.6165905658.

The spelling of 396444317 in words is "three hundred ninety-six million, four hundred forty-four thousand, three hundred seventeen".