33057943 has 2 divisors, whose sum is σ = 33057944. Its totient is φ = 33057942.

The previous prime is 33057919. The next prime is 33057949. The reversal of 33057943 is 34975033.

It is a strong prime.

It is an emirp because it is prime and its reverse (34975033) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33057943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33057899 and 33057908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33057949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16528971 + 16528972.

It is an arithmetic number, because the mean of its divisors is an integer number (16528972).

Almost surely, 2^33057943 is an apocalyptic number.

33057943 is a deficient number, since it is larger than the sum of its proper divisors (1).

33057943 is an equidigital number, since it uses as much as digits as its factorization.

33057943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 33057943 is about 5749.6037254753. The cubic root of 33057943 is about 320.9410547071.

The spelling of 33057943 in words is "thirty-three million, fifty-seven thousand, nine hundred forty-three".