20834 has 8 divisors (see below), whose sum is σ = 34128. Its totient is φ = 9460.

The previous prime is 20809. The next prime is 20849. The reversal of 20834 is 43802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452 + ... + 495.

It is an arithmetic number, because the mean of its divisors is an integer number (4266).

2²⁰⁸³⁴ is an apocalyptic number.

20834 is a deficient number, since it is larger than the sum of its proper divisors (13294).

20834 is a wasteful number, since it uses less digits than its factorization.

20834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20834 is about 144.3398766800. The cubic root of 20834 is about 27.5163539090.

It can be divided in two parts, 208 and 34, that added together give a palindrome (242).

The spelling of 20834 in words is "twenty thousand, eight hundred thirty-four".