28214 has 4 divisors (see below), whose sum is σ = 42324. Its totient is φ = 14106.

The previous prime is 28211. The next prime is 28219. The reversal of 28214 is 41282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41282 = 2 ⋅20641.

It is a junction number, because it is equal to n+sod(n) for n = 28192 and 28201.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28214.

It is not an unprimeable number, because it can be changed into a prime (28211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7052 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (10581).

2²⁸²¹⁴ is an apocalyptic number.

28214 is a deficient number, since it is larger than the sum of its proper divisors (14110).

28214 is a wasteful number, since it uses less digits than its factorization.

28214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14109.

The product of its digits is 128, while the sum is 17.

The square root of 28214 is about 167.9702354585. The cubic root of 28214 is about 30.4430541848.

Adding to 28214 its reverse (41282), we get a palindrome (69496).

It can be divided in two parts, 28 and 214, that added together give a palindrome (242).

The spelling of 28214 in words is "twenty-eight thousand, two hundred fourteen".