33939797 has 2 divisors, whose sum is σ = 33939798. Its totient is φ = 33939796.

The previous prime is 33939791. The next prime is 33939799. The reversal of 33939797 is 79793933.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32160241 + 1779556 = 5671^2 + 1334^2 .

It is a cyclic number.

It is not a de Polignac number, because 33939797 - 2¹⁸ = 33677653 is a prime.

Together with 33939799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33939791) 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, 16969898 + 16969899.

It is an arithmetic number, because the mean of its divisors is an integer number (16969899).

Almost surely, 2^33939797 is an apocalyptic number.

It is an amenable number.

33939797 is a deficient number, since it is larger than the sum of its proper divisors (1).

33939797 is an equidigital number, since it uses as much as digits as its factorization.

33939797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 964467, while the sum is 50.

The square root of 33939797 is about 5825.7872429398. The cubic root of 33939797 is about 323.7698570132.

The spelling of 33939797 in words is "thirty-three million, nine hundred thirty-nine thousand, seven hundred ninety-seven".