6911897 has 2 divisors, whose sum is σ = 6911898. Its totient is φ = 6911896.

The previous prime is 6911887. The next prime is 6911899. The reversal of 6911897 is 7981196.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 256 = 2629^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 6911897 - 2⁶ = 6911833 is a prime.

Together with 6911899, 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 (6911899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3455948 + 3455949.

It is an arithmetic number, because the mean of its divisors is an integer number (3455949).

Almost surely, 2^6911897 is an apocalyptic number.

It is an amenable number.

6911897 is a deficient number, since it is larger than the sum of its proper divisors (1).

6911897 is an equidigital number, since it uses as much as digits as its factorization.

6911897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 41.

The square root of 6911897 is about 2629.0486872631. The cubic root of 6911897 is about 190.4871800376.

It can be divided in two parts, 691189 and 7, that added together give a palindrome (691196).

The spelling of 6911897 in words is "six million, nine hundred eleven thousand, eight hundred ninety-seven".