28789110 has 48 divisors (see below), whose sum is σ = 85546656. Its totient is φ = 6580224.

The previous prime is 28789091. The next prime is 28789127. The reversal of 28789110 is 1198782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22219 + ... + 23478.

It is an arithmetic number, because the mean of its divisors is an integer number (1782222).

Almost surely, 2^28789110 is an apocalyptic number.

28789110 is an abundant number, since it is smaller than the sum of its proper divisors (56757546).

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

28789110 is a wasteful number, since it uses less digits than its factorization.

28789110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45717 (or 45714 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 28789110 is about 5365.5484342237. The cubic root of 28789110 is about 306.4851333196.

The spelling of 28789110 in words is "twenty-eight million, seven hundred eighty-nine thousand, one hundred ten".