33013433 has 2 divisors, whose sum is σ = 33013434. Its totient is φ = 33013432.

The previous prime is 33013403. The next prime is 33013501. The reversal of 33013433 is 33431033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32855824 + 157609 = 5732^2 + 397^2 .

It is an emirp because it is prime and its reverse (33431033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33013433 - 2⁶ = 33013369 is a prime.

It is not a weakly prime, because it can be changed into another prime (33013403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16506716 + 16506717.

It is an arithmetic number, because the mean of its divisors is an integer number (16506717).

Almost surely, 2^33013433 is an apocalyptic number.

It is an amenable number.

33013433 is a deficient number, since it is larger than the sum of its proper divisors (1).

33013433 is an equidigital number, since it uses as much as digits as its factorization.

33013433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 33013433 is about 5745.7317201554. The cubic root of 33013433 is about 320.7969491245.

Adding to 33013433 its reverse (33431033), we get a palindrome (66444466).

The spelling of 33013433 in words is "thirty-three million, thirteen thousand, four hundred thirty-three".