28895286 has 32 divisors (see below), whose sum is σ = 68179968. Its totient is φ = 7989120.

The previous prime is 28895267. The next prime is 28895297. The reversal of 28895286 is 68259882.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 9795 + ... + 12398.

It is an arithmetic number, because the mean of its divisors is an integer number (2130624).

Almost surely, 2^28895286 is an apocalyptic number.

28895286 is an abundant number, since it is smaller than the sum of its proper divisors (39284682).

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

28895286 is a wasteful number, since it uses less digits than its factorization.

28895286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22236.

The product of its digits is 552960, while the sum is 48.

The square root of 28895286 is about 5375.4335639091. The cubic root of 28895286 is about 306.8614497164.

The spelling of 28895286 in words is "twenty-eight million, eight hundred ninety-five thousand, two hundred eighty-six".