28558850 has 24 divisors (see below), whose sum is σ = 53390928. Its totient is φ = 11365200.

The previous prime is 28558769. The next prime is 28558853. The reversal of 28558850 is 5885582.

It is a junction number, because it is equal to n+sod(n) for n = 28558798 and 28558807.

It is not an unprimeable number, because it can be changed into a prime (28558853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9197 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (2224622).

Almost surely, 2^28558850 is an apocalyptic number.

28558850 is a deficient number, since it is larger than the sum of its proper divisors (24832078).

28558850 is a wasteful number, since it uses less digits than its factorization.

28558850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930 (or 2925 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 41.

The square root of 28558850 is about 5344.0480911010. The cubic root of 28558850 is about 305.6658391011.

The spelling of 28558850 in words is "twenty-eight million, five hundred fifty-eight thousand, eight hundred fifty".