993539213 has 2 divisors, whose sum is σ = 993539214. Its totient is φ = 993539212.

The previous prime is 993539189. The next prime is 993539221. The reversal of 993539213 is 312935399.

993539213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 710862244 + 282676969 = 26662^2 + 16813^2 .

It is a cyclic number.

It is not a de Polignac number, because 993539213 - 2⁶ = 993539149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993539233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496769606 + 496769607.

It is an arithmetic number, because the mean of its divisors is an integer number (496769607).

Almost surely, 2^993539213 is an apocalyptic number.

It is an amenable number.

993539213 is a deficient number, since it is larger than the sum of its proper divisors (1).

993539213 is an equidigital number, since it uses as much as digits as its factorization.

993539213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196830, while the sum is 44.

The square root of 993539213 is about 31520.4570556964. The cubic root of 993539213 is about 997.8417496398.

The spelling of 993539213 in words is "nine hundred ninety-three million, five hundred thirty-nine thousand, two hundred thirteen".