6918671 has 4 divisors (see below), whose sum is σ = 6927552. Its totient is φ = 6909792.

The previous prime is 6918649. The next prime is 6918689. The reversal of 6918671 is 1768196.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6918671 - 2¹⁸ = 6656527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918271) 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 in 3 ways as a sum of consecutive naturals, for example, 3146 + ... + 4871.

It is an arithmetic number, because the mean of its divisors is an integer number (1731888).

Almost surely, 2^6918671 is an apocalyptic number.

6918671 is a deficient number, since it is larger than the sum of its proper divisors (8881).

6918671 is an equidigital number, since it uses as much as digits as its factorization.

6918671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880.

The product of its digits is 18144, while the sum is 38.

The square root of 6918671 is about 2630.3366704663. The cubic root of 6918671 is about 190.5493886637.

The spelling of 6918671 in words is "six million, nine hundred eighteen thousand, six hundred seventy-one".