11829 has 4 divisors (see below), whose sum is σ = 15776. Its totient is φ = 7884.

The previous prime is 11827. The next prime is 11831. The reversal of 11829 is 92811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92811 = 3 ⋅30937.

It is an interprime number because it is at equal distance from previous prime (11827) and next prime (11831).

It is not a de Polignac number, because 11829 - 2¹ = 11827 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969 + ... + 1974.

It is an arithmetic number, because the mean of its divisors is an integer number (3944).

2¹¹⁸²⁹ is an apocalyptic number.

It is an amenable number.

11829 is a deficient number, since it is larger than the sum of its proper divisors (3947).

11829 is an equidigital number, since it uses as much as digits as its factorization.

11829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946.

The product of its digits is 144, while the sum is 21.

The square root of 11829 is about 108.7612063192. The cubic root of 11829 is about 22.7850163171.

It can be divided in two parts, 11 and 829, that multiplied together give a palindrome (9119).

The spelling of 11829 in words is "eleven thousand, eight hundred twenty-nine".