28906675 has 12 divisors (see below), whose sum is σ = 40965136. Its totient is φ = 19821600.

The previous prime is 28906673. The next prime is 28906687. The reversal of 28906675 is 57660982.

It is not a de Polignac number, because 28906675 - 2¹ = 28906673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28906673) 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 11 ways as a sum of consecutive naturals, for example, 82416 + ... + 82765.

Almost surely, 2^28906675 is an apocalyptic number.

28906675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28906675 is a deficient number, since it is larger than the sum of its proper divisors (12058461).

28906675 is a wasteful number, since it uses less digits than its factorization.

28906675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165198 (or 165193 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 28906675 is about 5376.4928159535. The cubic root of 28906675 is about 306.9017606284.

The spelling of 28906675 in words is "twenty-eight million, nine hundred six thousand, six hundred seventy-five".