28606 has 4 divisors (see below), whose sum is σ = 42912. Its totient is φ = 14302.

The previous prime is 28603. The next prime is 28607. The reversal of 28606 is 60682.

28606 is nontrivially palindromic in base 8.

28606 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60682 = 2 ⋅30341.

28606 is an undulating number in base 8.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7150 + ... + 7153.

It is an arithmetic number, because the mean of its divisors is an integer number (10728).

2²⁸⁶⁰⁶ is an apocalyptic number.

28606 is a deficient number, since it is larger than the sum of its proper divisors (14306).

28606 is a wasteful number, since it uses less digits than its factorization.

28606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14305.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28606 is about 169.1330836945. The cubic root of 28606 is about 30.5833962353.

The spelling of 28606 in words is "twenty-eight thousand, six hundred six".