28386206 has 8 divisors (see below), whose sum is σ = 42627384. Its totient is φ = 14177080.

The previous prime is 28386203. The next prime is 28386221. The reversal of 28386206 is 60268382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28386203) 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 3 ways as a sum of consecutive naturals, for example, 5660 + ... + 9423.

It is an arithmetic number, because the mean of its divisors is an integer number (5328423).

Almost surely, 2^28386206 is an apocalyptic number.

28386206 is a deficient number, since it is larger than the sum of its proper divisors (14241178).

28386206 is a wasteful number, since it uses less digits than its factorization.

28386206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16026.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 28386206 is about 5327.8706816138. The cubic root of 28386206 is about 305.0486565750.

The spelling of 28386206 in words is "twenty-eight million, three hundred eighty-six thousand, two hundred six".