27838 has 8 divisors (see below), whose sum is σ = 43200. Its totient is φ = 13440.

The previous prime is 27827. The next prime is 27847. The reversal of 27838 is 83872.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent 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, 163 + ... + 286.

It is an arithmetic number, because the mean of its divisors is an integer number (5400).

2²⁷⁸³⁸ is an apocalyptic number.

27838 is a deficient number, since it is larger than the sum of its proper divisors (15362).

27838 is a wasteful number, since it uses less digits than its factorization.

27838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its digits is 2688, while the sum is 28.

The square root of 27838 is about 166.8472355180. The cubic root of 27838 is about 30.3072136245.

The spelling of 27838 in words is "twenty-seven thousand, eight hundred thirty-eight".