6897271 has 2 divisors, whose sum is σ = 6897272. Its totient is φ = 6897270.

The previous prime is 6897211. The next prime is 6897299. The reversal of 6897271 is 1727986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6897271 - 2⁹ = 6896759 is a prime.

6897271 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6897211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3448635 + 3448636.

It is an arithmetic number, because the mean of its divisors is an integer number (3448636).

Almost surely, 2^6897271 is an apocalyptic number.

6897271 is a deficient number, since it is larger than the sum of its proper divisors (1).

6897271 is an equidigital number, since it uses as much as digits as its factorization.

6897271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 6897271 is about 2626.2655996681. The cubic root of 6897271 is about 190.3527242834.

The spelling of 6897271 in words is "six million, eight hundred ninety-seven thousand, two hundred seventy-one".