11963447 has 2 divisors, whose sum is σ = 11963448. Its totient is φ = 11963446.

The previous prime is 11963443. The next prime is 11963449. The reversal of 11963447 is 74436911.

It is a strong prime.

It is an emirp because it is prime and its reverse (74436911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11963447 - 2² = 11963443 is a prime.

Together with 11963449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11963443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5981723 + 5981724.

It is an arithmetic number, because the mean of its divisors is an integer number (5981724).

Almost surely, 2^11963447 is an apocalyptic number.

11963447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11963447 is an equidigital number, since it uses as much as digits as its factorization.

11963447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 11963447 is about 3458.8216201475. The cubic root of 11963447 is about 228.7101524149.

The spelling of 11963447 in words is "eleven million, nine hundred sixty-three thousand, four hundred forty-seven".