28684206 has 24 divisors (see below), whose sum is σ = 64452024. Its totient is φ = 9561240.

The previous prime is 28684193. The next prime is 28684211. The reversal of 28684206 is 60248682.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29025 + ... + 29996.

It is an arithmetic number, because the mean of its divisors is an integer number (2685501).

Almost surely, 2^28684206 is an apocalyptic number.

28684206 is an abundant number, since it is smaller than the sum of its proper divisors (35767818).

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

28684206 is an equidigital number, since it uses as much as digits as its factorization.

28684206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59038 (or 59026 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28684206 is about 5355.7638110731. The cubic root of 28684206 is about 306.1124154442.

The spelling of 28684206 in words is "twenty-eight million, six hundred eighty-four thousand, two hundred six".