6696919 has 2 divisors, whose sum is σ = 6696920. Its totient is φ = 6696918.

The previous prime is 6696917. The next prime is 6696923. The reversal of 6696919 is 9196966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6696919 - 2¹ = 6696917 is a prime.

It is a super-2 number, since 2×6696919² = 89697448185122, which contains 22 as substring.

Together with 6696917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6696917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348459 + 3348460.

It is an arithmetic number, because the mean of its divisors is an integer number (3348460).

Almost surely, 2^6696919 is an apocalyptic number.

6696919 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696919 is an equidigital number, since it uses as much as digits as its factorization.

6696919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 46.

The square root of 6696919 is about 2587.8406056015. The cubic root of 6696919 is about 188.4914615950.

The spelling of 6696919 in words is "six million, six hundred ninety-six thousand, nine hundred nineteen".