33340973 has 2 divisors, whose sum is σ = 33340974. Its totient is φ = 33340972.

The previous prime is 33340969. The next prime is 33340999. The reversal of 33340973 is 37904333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32296489 + 1044484 = 5683^2 + 1022^2 .

It is an emirp because it is prime and its reverse (37904333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33340973 - 2² = 33340969 is a prime.

It is a super-2 number, since 2×33340973² = 2223240961173458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33340963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16670486 + 16670487.

It is an arithmetic number, because the mean of its divisors is an integer number (16670487).

Almost surely, 2^33340973 is an apocalyptic number.

It is an amenable number.

33340973 is a deficient number, since it is larger than the sum of its proper divisors (1).

33340973 is an equidigital number, since it uses as much as digits as its factorization.

33340973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 32.

The square root of 33340973 is about 5774.1642685327. The cubic root of 33340973 is about 321.8543797140.

The spelling of 33340973 in words is "thirty-three million, three hundred forty thousand, nine hundred seventy-three".