33066947 has 2 divisors, whose sum is σ = 33066948. Its totient is φ = 33066946.

The previous prime is 33066923. The next prime is 33066949. The reversal of 33066947 is 74966033.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33066947 - 2¹⁶ = 33001411 is a prime.

Together with 33066949, 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 33066947.

It is not a weakly prime, because it can be changed into another prime (33066949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16533473 + 16533474.

It is an arithmetic number, because the mean of its divisors is an integer number (16533474).

Almost surely, 2^33066947 is an apocalyptic number.

33066947 is a deficient number, since it is larger than the sum of its proper divisors (1).

33066947 is an equidigital number, since it uses as much as digits as its factorization.

33066947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 33066947 is about 5750.3866826501. The cubic root of 33066947 is about 320.9701903265.

The spelling of 33066947 in words is "thirty-three million, sixty-six thousand, nine hundred forty-seven".