33730243 has 2 divisors, whose sum is σ = 33730244. Its totient is φ = 33730242.

The previous prime is 33730231. The next prime is 33730253. The reversal of 33730243 is 34203733.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33730243 - 2⁵ = 33730211 is a prime.

It is a super-2 number, since 2×33730243² = 2275458585678098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33730253) 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, 16865121 + 16865122.

It is an arithmetic number, because the mean of its divisors is an integer number (16865122).

Almost surely, 2^33730243 is an apocalyptic number.

33730243 is a deficient number, since it is larger than the sum of its proper divisors (1).

33730243 is an equidigital number, since it uses as much as digits as its factorization.

33730243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 25.

The square root of 33730243 is about 5807.7743585646. The cubic root of 33730243 is about 323.1021316905.

Adding to 33730243 its reverse (34203733), we get a palindrome (67933976).

The spelling of 33730243 in words is "thirty-three million, seven hundred thirty thousand, two hundred forty-three".