28105016 has 8 divisors (see below), whose sum is σ = 52696920. Its totient is φ = 14052504.

The previous prime is 28105001. The next prime is 28105019. The reversal of 28105016 is 61050182.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 28104982 and 28105000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28105019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1756556 + ... + 1756571.

It is an arithmetic number, because the mean of its divisors is an integer number (6587115).

Almost surely, 2^28105016 is an apocalyptic number.

It is an amenable number.

28105016 is a deficient number, since it is larger than the sum of its proper divisors (24591904).

28105016 is a wasteful number, since it uses less digits than its factorization.

28105016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513133 (or 3513129 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 28105016 is about 5301.4164145066. The cubic root of 28105016 is about 304.0380550237.

Adding to 28105016 its reverse (61050182), we get a palindrome (89155198).

It can be divided in two parts, 2 and 8105016, that added together give a palindrome (8105018).

The spelling of 28105016 in words is "twenty-eight million, one hundred five thousand, sixteen".