16829 has 2 divisors, whose sum is σ = 16830. Its totient is φ = 16828.

The previous prime is 16823. The next prime is 16831. The reversal of 16829 is 92861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9604 + 7225 = 98^2 + 85^2 .

It is an emirp because it is prime and its reverse (92861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16829 - 2⁸ = 16573 is a prime.

Together with 16831, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 16798 and 16807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16823) 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, 8414 + 8415.

It is an arithmetic number, because the mean of its divisors is an integer number (8415).

2¹⁶⁸²⁹ is an apocalyptic number.

It is an amenable number.

16829 is a deficient number, since it is larger than the sum of its proper divisors (1).

16829 is an equidigital number, since it uses as much as digits as its factorization.

16829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 26.

The square root of 16829 is about 129.7266356613. The cubic root of 16829 is about 25.6263116521.

The spelling of 16829 in words is "sixteen thousand, eight hundred twenty-nine".