33116609 has 2 divisors, whose sum is σ = 33116610. Its totient is φ = 33116608.

The previous prime is 33116597. The next prime is 33116627. The reversal of 33116609 is 90661133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33097009 + 19600 = 5753^2 + 140^2 .

It is an emirp because it is prime and its reverse (90661133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33116609 - 2⁴ = 33116593 is a prime.

It is not a weakly prime, because it can be changed into another prime (33116659) 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, 16558304 + 16558305.

It is an arithmetic number, because the mean of its divisors is an integer number (16558305).

Almost surely, 2^33116609 is an apocalyptic number.

It is an amenable number.

33116609 is a deficient number, since it is larger than the sum of its proper divisors (1).

33116609 is an equidigital number, since it uses as much as digits as its factorization.

33116609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 33116609 is about 5754.7032069430. The cubic root of 33116609 is about 321.1307942909.

The spelling of 33116609 in words is "thirty-three million, one hundred sixteen thousand, six hundred nine".