6968891 has 2 divisors, whose sum is σ = 6968892. Its totient is φ = 6968890.

The previous prime is 6968887. The next prime is 6968909. The reversal of 6968891 is 1988696.

It is a weak prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1688969 and 9698861.

It is a cyclic number.

It is not a de Polignac number, because 6968891 - 2² = 6968887 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6968821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3484445 + 3484446.

It is an arithmetic number, because the mean of its divisors is an integer number (3484446).

Almost surely, 2^6968891 is an apocalyptic number.

6968891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6968891 is an equidigital number, since it uses as much as digits as its factorization.

6968891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 47.

The square root of 6968891 is about 2639.8657162818. The cubic root of 6968891 is about 191.0093194652.

The spelling of 6968891 in words is "six million, nine hundred sixty-eight thousand, eight hundred ninety-one".