28662116 has 24 divisors (see below), whose sum is σ = 58724736. Its totient is φ = 11983680.

The previous prime is 28662113. The next prime is 28662133. The reversal of 28662116 is 61126682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28662113) 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 in 7 ways as a sum of consecutive naturals, for example, 11336 + ... + 13631.

It is an arithmetic number, because the mean of its divisors is an integer number (2446864).

Almost surely, 2^28662116 is an apocalyptic number.

It is an amenable number.

28662116 is an abundant number, since it is smaller than the sum of its proper divisors (30062620).

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

28662116 is a wasteful number, since it uses less digits than its factorization.

28662116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25019 (or 25017 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 28662116 is about 5353.7011496721. The cubic root of 28662116 is about 306.0338151646.

Adding to 28662116 its reverse (61126682), we get a palindrome (89788798).

The spelling of 28662116 in words is "twenty-eight million, six hundred sixty-two thousand, one hundred sixteen".