33666349 has 2 divisors, whose sum is σ = 33666350. Its totient is φ = 33666348.

The previous prime is 33666331. The next prime is 33666383. The reversal of 33666349 is 94366633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29626249 + 4040100 = 5443^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 33666349 - 2⁵ = 33666317 is a prime.

It is a super-2 number, since 2×33666349² = 2266846109979602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33666649) 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, 16833174 + 16833175.

It is an arithmetic number, because the mean of its divisors is an integer number (16833175).

Almost surely, 2^33666349 is an apocalyptic number.

It is an amenable number.

33666349 is a deficient number, since it is larger than the sum of its proper divisors (1).

33666349 is an equidigital number, since it uses as much as digits as its factorization.

33666349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 40.

The square root of 33666349 is about 5802.2710209021. The cubic root of 33666349 is about 322.8979891096.

The spelling of 33666349 in words is "thirty-three million, six hundred sixty-six thousand, three hundred forty-nine".