6842917 has 2 divisors, whose sum is σ = 6842918. Its totient is φ = 6842916.

The previous prime is 6842893. The next prime is 6842921. The reversal of 6842917 is 7192486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 933156 = 2431^2 + 966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6842917 is a prime.

6842917 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6842317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3421458 + 3421459.

It is an arithmetic number, because the mean of its divisors is an integer number (3421459).

Almost surely, 2^6842917 is an apocalyptic number.

It is an amenable number.

6842917 is a deficient number, since it is larger than the sum of its proper divisors (1).

6842917 is an equidigital number, since it uses as much as digits as its factorization.

6842917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 6842917 is about 2615.8969780937. The cubic root of 6842917 is about 189.8513796225.

The spelling of 6842917 in words is "six million, eight hundred forty-two thousand, nine hundred seventeen".