983939393 has 2 divisors, whose sum is σ = 983939394. Its totient is φ = 983939392.

The previous prime is 983939351. The next prime is 983939417. The reversal of 983939393 is 393939389.

983939393 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., 944148529 + 39790864 = 30727^2 + 6308^2 .

It is an emirp because it is prime and its reverse (393939389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 983939393 - 2⁸ = 983939137 is a prime.

It is not a weakly prime, because it can be changed into another prime (983939303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491969696 + 491969697.

It is an arithmetic number, because the mean of its divisors is an integer number (491969697).

Almost surely, 2^983939393 is an apocalyptic number.

It is an amenable number.

983939393 is a deficient number, since it is larger than the sum of its proper divisors (1).

983939393 is an equidigital number, since it uses as much as digits as its factorization.

983939393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 56.

The square root of 983939393 is about 31367.8082275444. The cubic root of 983939393 is about 994.6175454949.

The spelling of 983939393 in words is "nine hundred eighty-three million, nine hundred thirty-nine thousand, three hundred ninety-three".