6428171 has 2 divisors, whose sum is σ = 6428172. Its totient is φ = 6428170.

The previous prime is 6428153. The next prime is 6428173. The reversal of 6428171 is 1718246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6428171 - 2²² = 2233867 is a prime.

Together with 6428173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6428173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214085 + 3214086.

It is an arithmetic number, because the mean of its divisors is an integer number (3214086).

Almost surely, 2^6428171 is an apocalyptic number.

6428171 is a deficient number, since it is larger than the sum of its proper divisors (1).

6428171 is an equidigital number, since it uses as much as digits as its factorization.

6428171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 29.

The square root of 6428171 is about 2535.3837973766. The cubic root of 6428171 is about 185.9355675387.

The spelling of 6428171 in words is "six million, four hundred twenty-eight thousand, one hundred seventy-one".