6719897 has 2 divisors, whose sum is σ = 6719898. Its totient is φ = 6719896.

The previous prime is 6719893. The next prime is 6719917. The reversal of 6719897 is 7989176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3519376 + 3200521 = 1876^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 6719897 - 2² = 6719893 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (6719893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359948 + 3359949.

It is an arithmetic number, because the mean of its divisors is an integer number (3359949).

Almost surely, 2^6719897 is an apocalyptic number.

It is an amenable number.

6719897 is a deficient number, since it is larger than the sum of its proper divisors (1).

6719897 is an equidigital number, since it uses as much as digits as its factorization.

6719897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 47.

The square root of 6719897 is about 2592.2764127307. The cubic root of 6719897 is about 188.7067950758.

The spelling of 6719897 in words is "six million, seven hundred nineteen thousand, eight hundred ninety-seven".