33940943 has 2 divisors, whose sum is σ = 33940944. Its totient is φ = 33940942.

The previous prime is 33940919. The next prime is 33940957. The reversal of 33940943 is 34904933.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33940943 - 2¹⁴ = 33924559 is a prime.

It is a super-2 number, since 2×33940943² = 2303975223458498, which contains 22 as substring.

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 (33940903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16970471 + 16970472.

It is an arithmetic number, because the mean of its divisors is an integer number (16970472).

Almost surely, 2^33940943 is an apocalyptic number.

33940943 is a deficient number, since it is larger than the sum of its proper divisors (1).

33940943 is an equidigital number, since it uses as much as digits as its factorization.

33940943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 33940943 is about 5825.8855979156. The cubic root of 33940943 is about 323.7735010742.

The spelling of 33940943 in words is "thirty-three million, nine hundred forty thousand, nine hundred forty-three".