28271108 has 12 divisors (see below), whose sum is σ = 50811852. Its totient is φ = 13753440.

The previous prime is 28271057. The next prime is 28271137. The reversal of 28271108 is 80117282.

It can be written as a sum of positive squares in 2 ways, for example, as 17825284 + 10445824 = 4222^2 + 3232^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 95363 + ... + 95658.

It is an arithmetic number, because the mean of its divisors is an integer number (4234321).

Almost surely, 2^28271108 is an apocalyptic number.

It is an amenable number.

28271108 is a deficient number, since it is larger than the sum of its proper divisors (22540744).

28271108 is a wasteful number, since it uses less digits than its factorization.

28271108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191062 (or 191060 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 28271108 is about 5317.0582091980. The cubic root of 28271108 is about 304.6358028598.

The spelling of 28271108 in words is "twenty-eight million, two hundred seventy-one thousand, one hundred eight".