11984429 has 2 divisors, whose sum is σ = 11984430. Its totient is φ = 11984428.

The previous prime is 11984419. The next prime is 11984431. The reversal of 11984429 is 92448911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11744329 + 240100 = 3427^2 + 490^2 .

It is an emirp because it is prime and its reverse (92448911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11984429 is a prime.

Together with 11984431, 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 = 11984392 and 11984401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11984419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5992214 + 5992215.

It is an arithmetic number, because the mean of its divisors is an integer number (5992215).

Almost surely, 2^11984429 is an apocalyptic number.

It is an amenable number.

11984429 is a deficient number, since it is larger than the sum of its proper divisors (1).

11984429 is an equidigital number, since it uses as much as digits as its factorization.

11984429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 11984429 is about 3461.8534053307. The cubic root of 11984429 is about 228.8437815076.

It can be divided in two parts, 119 and 84429, that added together give a palindrome (84548).

The spelling of 11984429 in words is "eleven million, nine hundred eighty-four thousand, four hundred twenty-nine".