6696619 has 2 divisors, whose sum is σ = 6696620. Its totient is φ = 6696618.

The previous prime is 6696617. The next prime is 6696637. The reversal of 6696619 is 9166966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6696619 - 2¹ = 6696617 is a prime.

It is a super-2 number, since 2×6696619² = 89689412062322, which contains 22 as substring.

Together with 6696617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6696617) 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, 3348309 + 3348310.

It is an arithmetic number, because the mean of its divisors is an integer number (3348310).

Almost surely, 2^6696619 is an apocalyptic number.

6696619 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696619 is an equidigital number, since it uses as much as digits as its factorization.

6696619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 6696619 is about 2587.7826415679. The cubic root of 6696619 is about 188.4886469532.

It can be divided in two parts, 6 and 696619, that multiplied together give a palindrome (4179714).

The spelling of 6696619 in words is "six million, six hundred ninety-six thousand, six hundred nineteen".