11923829 has 2 divisors, whose sum is σ = 11923830. Its totient is φ = 11923828.

The previous prime is 11923823. The next prime is 11923831. The reversal of 11923829 is 92832911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6115729 + 5808100 = 2473^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 11923829 - 2²⁰ = 10875253 is a prime.

Together with 11923831, 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 (11923823) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5961914 + 5961915.

It is an arithmetic number, because the mean of its divisors is an integer number (5961915).

Almost surely, 2^11923829 is an apocalyptic number.

It is an amenable number.

11923829 is a deficient number, since it is larger than the sum of its proper divisors (1).

11923829 is an equidigital number, since it uses as much as digits as its factorization.

11923829 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11923829 is about 3453.0897758384. The cubic root of 11923829 is about 228.4574086641.

The spelling of 11923829 in words is "eleven million, nine hundred twenty-three thousand, eight hundred twenty-nine".