33805091 has 2 divisors, whose sum is σ = 33805092. Its totient is φ = 33805090.

The previous prime is 33805081. The next prime is 33805099. The reversal of 33805091 is 19050833.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33805091 is a prime.

It is a super-2 number, since 2×33805091² = 2285568355036562, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (33805099) 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, 16902545 + 16902546.

It is an arithmetic number, because the mean of its divisors is an integer number (16902546).

Almost surely, 2^33805091 is an apocalyptic number.

33805091 is a deficient number, since it is larger than the sum of its proper divisors (1).

33805091 is an equidigital number, since it uses as much as digits as its factorization.

33805091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 33805091 is about 5814.2145643242. The cubic root of 33805091 is about 323.3409448970.

The spelling of 33805091 in words is "thirty-three million, eight hundred five thousand, ninety-one".