28085673 has 36 divisors (see below), whose sum is σ = 47911920. Its totient is φ = 14580720.

The previous prime is 28085657. The next prime is 28085677. The reversal of 28085673 is 37658082.

It is not a de Polignac number, because 28085673 - 2⁴ = 28085657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28085677) 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 35 ways as a sum of consecutive naturals, for example, 16998 + ... + 18576.

Almost surely, 2^28085673 is an apocalyptic number.

It is an amenable number.

28085673 is a deficient number, since it is larger than the sum of its proper divisors (19826247).

28085673 is a wasteful number, since it uses less digits than its factorization.

28085673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28085673 is about 5299.5917767315. The cubic root of 28085673 is about 303.9682886185.

The spelling of 28085673 in words is "twenty-eight million, eighty-five thousand, six hundred seventy-three".