993321239 has 2 divisors, whose sum is σ = 993321240. Its totient is φ = 993321238.

The previous prime is 993321223. The next prime is 993321269. The reversal of 993321239 is 932123399.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 993321239 - 2⁴ = 993321223 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 993321196 and 993321205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993321209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496660619 + 496660620.

It is an arithmetic number, because the mean of its divisors is an integer number (496660620).

Almost surely, 2^993321239 is an apocalyptic number.

993321239 is a deficient number, since it is larger than the sum of its proper divisors (1).

993321239 is an equidigital number, since it uses as much as digits as its factorization.

993321239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 41.

The square root of 993321239 is about 31516.9992067773. Note that the first 3 decimals coincide. The cubic root of 993321239 is about 997.7687716560.

The spelling of 993321239 in words is "nine hundred ninety-three million, three hundred twenty-one thousand, two hundred thirty-nine".