6679619 has 2 divisors, whose sum is σ = 6679620. Its totient is φ = 6679618.

The previous prime is 6679613. The next prime is 6679639. The reversal of 6679619 is 9169766.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6679619 - 2⁸ = 6679363 is a prime.

It is a super-2 number, since 2×6679619² = 89234619970322, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6679619.

It is not a weakly prime, because it can be changed into another prime (6679613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339809 + 3339810.

It is an arithmetic number, because the mean of its divisors is an integer number (3339810).

Almost surely, 2^6679619 is an apocalyptic number.

6679619 is a deficient number, since it is larger than the sum of its proper divisors (1).

6679619 is an equidigital number, since it uses as much as digits as its factorization.

6679619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 6679619 is about 2584.4958889501. The cubic root of 6679619 is about 188.3290130491.

The spelling of 6679619 in words is "six million, six hundred seventy-nine thousand, six hundred nineteen".