33040789 has 2 divisors, whose sum is σ = 33040790. Its totient is φ = 33040788.

The previous prime is 33040771. The next prime is 33040801. The reversal of 33040789 is 98704033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32970564 + 70225 = 5742^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 33040789 - 2⁵ = 33040757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33040729) 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, 16520394 + 16520395.

It is an arithmetic number, because the mean of its divisors is an integer number (16520395).

Almost surely, 2^33040789 is an apocalyptic number.

It is an amenable number.

33040789 is a deficient number, since it is larger than the sum of its proper divisors (1).

33040789 is an equidigital number, since it uses as much as digits as its factorization.

33040789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 33040789 is about 5748.1117769229. Note that the first 3 decimals coincide. The cubic root of 33040789 is about 320.8855322426.

The spelling of 33040789 in words is "thirty-three million, forty thousand, seven hundred eighty-nine".