28116308 has 12 divisors (see below), whose sum is σ = 53676672. Its totient is φ = 12780120.

The previous prime is 28116307. The next prime is 28116313. The reversal of 28116308 is 80361182.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28116301) 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 3 ways as a sum of consecutive naturals, for example, 319460 + ... + 319547.

It is an arithmetic number, because the mean of its divisors is an integer number (4473056).

Almost surely, 2^28116308 is an apocalyptic number.

It is an amenable number.

28116308 is a deficient number, since it is larger than the sum of its proper divisors (25560364).

28116308 is a wasteful number, since it uses less digits than its factorization.

28116308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639022 (or 639020 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 28116308 is about 5302.4813059548. The cubic root of 28116308 is about 304.0787682546.

It can be divided in two parts, 2811 and 6308, that added together give a palindrome (9119).

The spelling of 28116308 in words is "twenty-eight million, one hundred sixteen thousand, three hundred eight".