28106106 has 40 divisors (see below), whose sum is σ = 65610624. Its totient is φ = 8026200.

The previous prime is 28106093. The next prime is 28106107. The reversal of 28106106 is 60160182.

It is a super-3 number, since 3×28106106³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28106107) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13431 + ... + 15381.

Almost surely, 2^28106106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28106106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32805312).

28106106 is an abundant number, since it is smaller than the sum of its proper divisors (37504518).

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

28106106 is an equidigital number, since it uses as much as digits as its factorization.

28106106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1963 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 28106106 is about 5301.5192162247. The cubic root of 28106106 is about 304.0419854869.

Adding to 28106106 its reverse (60160182), we get a palindrome (88266288).

The spelling of 28106106 in words is "twenty-eight million, one hundred six thousand, one hundred six".