28895856 has 40 divisors (see below), whose sum is σ = 81435264. Its totient is φ = 8756160.

The previous prime is 28895851. The next prime is 28895887. The reversal of 28895856 is 65859882.

It is a junction number, because it is equal to n+sod(n) for n = 28895799 and 28895808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895851) 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, 26836 + ... + 27891.

Almost surely, 2^28895856 is an apocalyptic number.

It is an amenable number.

28895856 is an abundant number, since it is smaller than the sum of its proper divisors (52539408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28895856 is a wasteful number, since it uses less digits than its factorization.

28895856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54749 (or 54743 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The square root of 28895856 is about 5375.4865826267. The cubic root of 28895856 is about 306.8634674605.

The spelling of 28895856 in words is "twenty-eight million, eight hundred ninety-five thousand, eight hundred fifty-six".