396428171 has 2 divisors, whose sum is σ = 396428172. Its totient is φ = 396428170.

The previous prime is 396428167. The next prime is 396428177. The reversal of 396428171 is 171824693.

It is a weak prime.

It is an emirp because it is prime and its reverse (171824693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396428171 - 2² = 396428167 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396428177) 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, 198214085 + 198214086.

It is an arithmetic number, because the mean of its divisors is an integer number (198214086).

Almost surely, 2^396428171 is an apocalyptic number.

396428171 is a deficient number, since it is larger than the sum of its proper divisors (1).

396428171 is an equidigital number, since it uses as much as digits as its factorization.

396428171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 396428171 is about 19910.5040368143. The cubic root of 396428171 is about 734.6066175128.

The spelling of 396428171 in words is "three hundred ninety-six million, four hundred twenty-eight thousand, one hundred seventy-one".