28295856 has 30 divisors (see below), whose sum is σ = 79189500. Its totient is φ = 9431904.

The previous prime is 28295821. The next prime is 28295867. The reversal of 28295856 is 65859282.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 98106 + ... + 98393.

It is an arithmetic number, because the mean of its divisors is an integer number (2639650).

Almost surely, 2^28295856 is an apocalyptic number.

It is an amenable number.

28295856 is an abundant number, since it is smaller than the sum of its proper divisors (50893644).

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

28295856 is a wasteful number, since it uses less digits than its factorization.

28295856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196513 (or 196504 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28295856 is about 5319.3849268501. The cubic root of 28295856 is about 304.7246677657.

The spelling of 28295856 in words is "twenty-eight million, two hundred ninety-five thousand, eight hundred fifty-six".