6820171 has 4 divisors (see below), whose sum is σ = 6913672. Its totient is φ = 6726672.

The previous prime is 6820169. The next prime is 6820181. The reversal of 6820171 is 1710286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1710286 = 2 ⋅855143.

It is a cyclic number.

It is not a de Polignac number, because 6820171 - 2¹ = 6820169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6820141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46641 + ... + 46786.

It is an arithmetic number, because the mean of its divisors is an integer number (1728418).

Almost surely, 2^6820171 is an apocalyptic number.

6820171 is a deficient number, since it is larger than the sum of its proper divisors (93501).

6820171 is an equidigital number, since it uses as much as digits as its factorization.

6820171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93500.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 6820171 is about 2611.5457108770. The cubic root of 6820171 is about 189.6407894551.

The spelling of 6820171 in words is "six million, eight hundred twenty thousand, one hundred seventy-one".