28696 has 16 divisors (see below), whose sum is σ = 57240. Its totient is φ = 13440.

The previous prime is 28687. The next prime is 28697. The reversal of 28696 is 69682.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28697) by changing a digit.

28696 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31 + ... + 241.

2²⁸⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

28696 is a deficient number, since it is larger than the sum of its proper divisors (28544).

28696 is a wasteful number, since it uses less digits than its factorization.

28696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 230 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 28696 is about 169.3989374229. The cubic root of 28696 is about 30.6154364140.

The spelling of 28696 in words is "twenty-eight thousand, six hundred ninety-six".