11908439 has 2 divisors, whose sum is σ = 11908440. Its totient is φ = 11908438.

The previous prime is 11908427. The next prime is 11908441. The reversal of 11908439 is 93480911.

It is a strong prime.

It is an emirp because it is prime and its reverse (93480911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11908439 is a prime.

Together with 11908441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11908399 and 11908408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11908489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5954219 + 5954220.

It is an arithmetic number, because the mean of its divisors is an integer number (5954220).

Almost surely, 2^11908439 is an apocalyptic number.

11908439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11908439 is an equidigital number, since it uses as much as digits as its factorization.

11908439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 11908439 is about 3450.8606172953. The cubic root of 11908439 is about 228.3590769040.

The spelling of 11908439 in words is "eleven million, nine hundred eight thousand, four hundred thirty-nine".