1933934993 has 2 divisors, whose sum is σ = 1933934994. Its totient is φ = 1933934992.

The previous prime is 1933934987. The next prime is 1933935127. The reversal of 1933934993 is 3994393391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1714539649 + 219395344 = 41407^2 + 14812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1933934993 is a prime.

It is a super-3 number, since 3×1933934993³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1933934293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966967496 + 966967497.

It is an arithmetic number, because the mean of its divisors is an integer number (966967497).

Almost surely, 2^1933934993 is an apocalyptic number.

It is an amenable number.

1933934993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1933934993 is an equidigital number, since it uses as much as digits as its factorization.

1933934993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2125764, while the sum is 53.

The square root of 1933934993 is about 43976.5277506081. The cubic root of 1933934993 is about 1245.8926503655.

The spelling of 1933934993 in words is "one billion, nine hundred thirty-three million, nine hundred thirty-four thousand, nine hundred ninety-three".