6886969 has 2 divisors, whose sum is σ = 6886970. Its totient is φ = 6886968.

The previous prime is 6886967. The next prime is 6886973. The reversal of 6886969 is 9696886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6697744 + 189225 = 2588^2 + 435^2 .

It is a cyclic number.

It is not a de Polignac number, because 6886969 - 2¹ = 6886967 is a prime.

It is a super-2 number, since 2×6886969² = 94860684013922, which contains 22 as substring.

Together with 6886967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6886963) 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, 3443484 + 3443485.

It is an arithmetic number, because the mean of its divisors is an integer number (3443485).

Almost surely, 2^6886969 is an apocalyptic number.

It is an amenable number.

6886969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6886969 is an equidigital number, since it uses as much as digits as its factorization.

6886969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 52.

The square root of 6886969 is about 2624.3035266524. The cubic root of 6886969 is about 190.2579046114.

The spelling of 6886969 in words is "six million, eight hundred eighty-six thousand, nine hundred sixty-nine".