33940091 has 2 divisors, whose sum is σ = 33940092. Its totient is φ = 33940090.

The previous prime is 33940069. The next prime is 33940097. The reversal of 33940091 is 19004933.

33940091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33940091 - 2¹⁰ = 33939067 is a prime.

It is not a weakly prime, because it can be changed into another prime (33940097) 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, 16970045 + 16970046.

It is an arithmetic number, because the mean of its divisors is an integer number (16970046).

Almost surely, 2^33940091 is an apocalyptic number.

33940091 is a deficient number, since it is larger than the sum of its proper divisors (1).

33940091 is an equidigital number, since it uses as much as digits as its factorization.

33940091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 33940091 is about 5825.8124755265. The cubic root of 33940091 is about 323.7707918848.

The spelling of 33940091 in words is "thirty-three million, nine hundred forty thousand, ninety-one".