33868379 has 2 divisors, whose sum is σ = 33868380. Its totient is φ = 33868378.

The previous prime is 33868363. The next prime is 33868381. The reversal of 33868379 is 97386833.

It is a strong prime.

It is an emirp because it is prime and its reverse (97386833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33868379 - 2⁴ = 33868363 is a prime.

It is a super-2 number, since 2×33868379² = 2294134192175282, which contains 22 as substring.

Together with 33868381, 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 (33868309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16934189 + 16934190.

It is an arithmetic number, because the mean of its divisors is an integer number (16934190).

Almost surely, 2^33868379 is an apocalyptic number.

33868379 is a deficient number, since it is larger than the sum of its proper divisors (1).

33868379 is an equidigital number, since it uses as much as digits as its factorization.

33868379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 33868379 is about 5819.6545430120. The cubic root of 33868379 is about 323.5425993827.

The spelling of 33868379 in words is "thirty-three million, eight hundred sixty-eight thousand, three hundred seventy-nine".