33998243 has 2 divisors, whose sum is σ = 33998244. Its totient is φ = 33998242.

The previous prime is 33998233. The next prime is 33998269. The reversal of 33998243 is 34289933.

It is a weak prime.

It is an emirp because it is prime and its reverse (34289933) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33998243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33998243.

It is not a weakly prime, because it can be changed into another prime (33998213) 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, 16999121 + 16999122.

It is an arithmetic number, because the mean of its divisors is an integer number (16999122).

Almost surely, 2^33998243 is an apocalyptic number.

33998243 is a deficient number, since it is larger than the sum of its proper divisors (1).

33998243 is an equidigital number, since it uses as much as digits as its factorization.

33998243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 33998243 is about 5830.8012313918. The cubic root of 33998243 is about 323.9555996415.

The spelling of 33998243 in words is "thirty-three million, nine hundred ninety-eight thousand, two hundred forty-three".