33133889 has 2 divisors, whose sum is σ = 33133890. Its totient is φ = 33133888.

The previous prime is 33133879. The next prime is 33133913. The reversal of 33133889 is 98833133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29073664 + 4060225 = 5392^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 33133889 - 2²⁴ = 16356673 is a prime.

It is not a weakly prime, because it can be changed into another prime (33133819) 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, 16566944 + 16566945.

It is an arithmetic number, because the mean of its divisors is an integer number (16566945).

Almost surely, 2^33133889 is an apocalyptic number.

It is an amenable number.

33133889 is a deficient number, since it is larger than the sum of its proper divisors (1).

33133889 is an equidigital number, since it uses as much as digits as its factorization.

33133889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 33133889 is about 5756.2043917846. The cubic root of 33133889 is about 321.1866391313.

The spelling of 33133889 in words is "thirty-three million, one hundred thirty-three thousand, eight hundred eighty-nine".