33793139 has 2 divisors, whose sum is σ = 33793140. Its totient is φ = 33793138.

The previous prime is 33793129. The next prime is 33793147. The reversal of 33793139 is 93139733.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33793139 is a prime.

It is a super-2 number, since 2×33793139² = 2283952486946642, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (33793129) 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, 16896569 + 16896570.

It is an arithmetic number, because the mean of its divisors is an integer number (16896570).

Almost surely, 2^33793139 is an apocalyptic number.

33793139 is a deficient number, since it is larger than the sum of its proper divisors (1).

33793139 is an equidigital number, since it uses as much as digits as its factorization.

33793139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45927, while the sum is 38.

The square root of 33793139 is about 5813.1866476142. The cubic root of 33793139 is about 323.3028340051.

The spelling of 33793139 in words is "thirty-three million, seven hundred ninety-three thousand, one hundred thirty-nine".