993930293 has 2 divisors, whose sum is σ = 993930294. Its totient is φ = 993930292.

The previous prime is 993930263. The next prime is 993930331. The reversal of 993930293 is 392039399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 905889604 + 88040689 = 30098^2 + 9383^2 .

It is an emirp because it is prime and its reverse (392039399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 993930293 - 2¹⁰ = 993929269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993930263) 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, 496965146 + 496965147.

It is an arithmetic number, because the mean of its divisors is an integer number (496965147).

Almost surely, 2^993930293 is an apocalyptic number.

It is an amenable number.

993930293 is a deficient number, since it is larger than the sum of its proper divisors (1).

993930293 is an equidigital number, since it uses as much as digits as its factorization.

993930293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 354294, while the sum is 47.

The square root of 993930293 is about 31526.6600355953. The cubic root of 993930293 is about 997.9726569912.

The spelling of 993930293 in words is "nine hundred ninety-three million, nine hundred thirty thousand, two hundred ninety-three".