396217 has 2 divisors, whose sum is σ = 396218. Its totient is φ = 396216.

The previous prime is 396203. The next prime is 396239. The reversal of 396217 is 712693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395641 + 576 = 629^2 + 24^2 .

It is an emirp because it is prime and its reverse (712693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396217 - 2¹¹ = 394169 is a prime.

It is a super-2 number, since 2×396217² = 313975822178, which contains 22 as substring.

396217 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (396247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198108 + 198109.

It is an arithmetic number, because the mean of its divisors is an integer number (198109).

2³⁹⁶²¹⁷ is an apocalyptic number.

It is an amenable number.

396217 is a deficient number, since it is larger than the sum of its proper divisors (1).

396217 is an equidigital number, since it uses as much as digits as its factorization.

396217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 396217 is about 629.4577031064. The cubic root of 396217 is about 73.4476156580.

The spelling of 396217 in words is "three hundred ninety-six thousand, two hundred seventeen".