6918851 has 2 divisors, whose sum is σ = 6918852. Its totient is φ = 6918850.

The previous prime is 6918839. The next prime is 6918853. The reversal of 6918851 is 1588196.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6918851 is a prime.

Together with 6918853, 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 (6918853) 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, 3459425 + 3459426.

It is an arithmetic number, because the mean of its divisors is an integer number (3459426).

Almost surely, 2^6918851 is an apocalyptic number.

6918851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6918851 is an equidigital number, since it uses as much as digits as its factorization.

6918851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 38.

The square root of 6918851 is about 2630.3708863961. The cubic root of 6918851 is about 190.5510411290.

The spelling of 6918851 in words is "six million, nine hundred eighteen thousand, eight hundred fifty-one".