28666179 has 24 divisors (see below), whose sum is σ = 42468192. Its totient is φ = 18627840.

The previous prime is 28666147. The next prime is 28666189. The reversal of 28666179 is 97166682.

It is not a de Polignac number, because 28666179 - 2⁵ = 28666147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28666129) 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 23 ways as a sum of consecutive naturals, for example, 72009 + ... + 72405.

It is an arithmetic number, because the mean of its divisors is an integer number (1769508).

Almost surely, 2^28666179 is an apocalyptic number.

28666179 is a deficient number, since it is larger than the sum of its proper divisors (13802013).

28666179 is a wasteful number, since it uses less digits than its factorization.

28666179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 584 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 28666179 is about 5354.0805933419. The cubic root of 28666179 is about 306.0482750954.

It can be divided in two parts, 2866 and 6179, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 28666179 in words is "twenty-eight million, six hundred sixty-six thousand, one hundred seventy-nine".