33968351 has 2 divisors, whose sum is σ = 33968352. Its totient is φ = 33968350.

The previous prime is 33968339. The next prime is 33968381. The reversal of 33968351 is 15386933.

It is a weak prime.

It is an emirp because it is prime and its reverse (15386933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33968351 - 2²² = 29774047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33968321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16984175 + 16984176.

It is an arithmetic number, because the mean of its divisors is an integer number (16984176).

Almost surely, 2^33968351 is an apocalyptic number.

33968351 is a deficient number, since it is larger than the sum of its proper divisors (1).

33968351 is an equidigital number, since it uses as much as digits as its factorization.

33968351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 33968351 is about 5828.2373836350. The cubic root of 33968351 is about 323.8606288494.

The spelling of 33968351 in words is "thirty-three million, nine hundred sixty-eight thousand, three hundred fifty-one".