28117016 has 16 divisors (see below), whose sum is σ = 52972440. Its totient is φ = 13991040.

The previous prime is 28117009. The next prime is 28117027. The reversal of 28117016 is 61071182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6641 + ... + 10016.

Almost surely, 2^28117016 is an apocalyptic number.

It is an amenable number.

28117016 is a deficient number, since it is larger than the sum of its proper divisors (24855424).

28117016 is a wasteful number, since it uses less digits than its factorization.

28117016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16874 (or 16870 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 28117016 is about 5302.5480667317. The cubic root of 28117016 is about 304.0813205808.

Adding to 28117016 its reverse (61071182), we get a palindrome (89188198).

The spelling of 28117016 in words is "twenty-eight million, one hundred seventeen thousand, sixteen".