11939393 has 2 divisors, whose sum is σ = 11939394. Its totient is φ = 11939392.

The previous prime is 11939377. The next prime is 11939407. The reversal of 11939393 is 39393911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7745089 + 4194304 = 2783^2 + 2048^2 .

It is a cyclic number.

It is not a de Polignac number, because 11939393 - 2⁴ = 11939377 is a prime.

It is not a weakly prime, because it can be changed into another prime (11935393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5969696 + 5969697.

It is an arithmetic number, because the mean of its divisors is an integer number (5969697).

Almost surely, 2^11939393 is an apocalyptic number.

It is an amenable number.

11939393 is a deficient number, since it is larger than the sum of its proper divisors (1).

11939393 is an equidigital number, since it uses as much as digits as its factorization.

11939393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19683, while the sum is 38.

The square root of 11939393 is about 3455.3426747575. The cubic root of 11939393 is about 228.5567661539.

The spelling of 11939393 in words is "eleven million, nine hundred thirty-nine thousand, three hundred ninety-three".