33680219 has 2 divisors, whose sum is σ = 33680220. Its totient is φ = 33680218.

The previous prime is 33680191. The next prime is 33680221. The reversal of 33680219 is 91208633.

33680219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33680219 is a prime.

It is a super-2 number, since 2×33680219² = 2268714303775922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 33680221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33680239) 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, 16840109 + 16840110.

It is an arithmetic number, because the mean of its divisors is an integer number (16840110).

Almost surely, 2^33680219 is an apocalyptic number.

33680219 is a deficient number, since it is larger than the sum of its proper divisors (1).

33680219 is an equidigital number, since it uses as much as digits as its factorization.

33680219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 33680219 is about 5803.4661194841. The cubic root of 33680219 is about 322.9423259657.

The spelling of 33680219 in words is "thirty-three million, six hundred eighty thousand, two hundred nineteen".