28626 has 16 divisors (see below), whose sum is σ = 61824. Its totient is φ = 8784.

The previous prime is 28621. The next prime is 28627. The reversal of 28626 is 62682.

It is a junction number, because it is equal to n+sod(n) for n = 28596 and 28605.

It is not an unprimeable number, because it can be changed into a prime (28621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 261.

It is an arithmetic number, because the mean of its divisors is an integer number (3864).

2²⁸⁶²⁶ is an apocalyptic number.

28626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28626 is an abundant number, since it is smaller than the sum of its proper divisors (33198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30912).

28626 is a wasteful number, since it uses less digits than its factorization.

28626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385.

The product of its digits is 1152, while the sum is 24.

The square root of 28626 is about 169.1921984017. The cubic root of 28626 is about 30.5905220764.

The spelling of 28626 in words is "twenty-eight thousand, six hundred twenty-six".