6694019 has 2 divisors, whose sum is σ = 6694020. Its totient is φ = 6694018.

The previous prime is 6694013. The next prime is 6694021. The reversal of 6694019 is 9104966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6694019 - 2¹⁶ = 6628483 is a prime.

It is a super-2 number, since 2×6694019² = 89619780744722, which contains 22 as substring.

Together with 6694021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6694019.

It is not a weakly prime, because it can be changed into another prime (6694013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347009 + 3347010.

It is an arithmetic number, because the mean of its divisors is an integer number (3347010).

Almost surely, 2^6694019 is an apocalyptic number.

6694019 is a deficient number, since it is larger than the sum of its proper divisors (1).

6694019 is an equidigital number, since it uses as much as digits as its factorization.

6694019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 6694019 is about 2587.2802322130. The cubic root of 6694019 is about 188.4642498697.

The spelling of 6694019 in words is "six million, six hundred ninety-four thousand, nineteen".