28680006 has 24 divisors (see below), whose sum is σ = 60542424. Its totient is φ = 9056160.

The previous prime is 28679999. The next prime is 28680007. The reversal of 28680006 is 60008682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28680007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4455 + ... + 8786.

It is an arithmetic number, because the mean of its divisors is an integer number (2522601).

Almost surely, 2^28680006 is an apocalyptic number.

28680006 is an abundant number, since it is smaller than the sum of its proper divisors (31862418).

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

28680006 is a wasteful number, since it uses less digits than its factorization.

28680006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13284 (or 13265 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28680006 is about 5355.3716957836. The cubic root of 28680006 is about 306.0974741800.

Adding to 28680006 its reverse (60008682), we get a palindrome (88688688).

The spelling of 28680006 in words is "twenty-eight million, six hundred eighty thousand, six".