28066927 has 8 divisors (see below), whose sum is σ = 32218400. Its totient is φ = 23950944.

The previous prime is 28066921. The next prime is 28066931. The reversal of 28066927 is 72966082.

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

It is a cyclic number.

It is not a de Polignac number, because 28066927 - 2¹¹ = 28064879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28066927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28066921) 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, 7152 + ... + 10357.

It is an arithmetic number, because the mean of its divisors is an integer number (4027300).

Almost surely, 2^28066927 is an apocalyptic number.

28066927 is a deficient number, since it is larger than the sum of its proper divisors (4151473).

28066927 is a wasteful number, since it uses less digits than its factorization.

28066927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17745.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 28066927 is about 5297.8228547206. The cubic root of 28066927 is about 303.9006449036.

The spelling of 28066927 in words is "twenty-eight million, sixty-six thousand, nine hundred twenty-seven".