110728989 has 24 divisors (see below), whose sum is σ = 189096960. Its totient is φ = 61090848.

The previous prime is 110728963. The next prime is 110728991. The reversal of 110728989 is 989827011.

It is not a de Polignac number, because 110728989 - 2¹⁵ = 110696221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110728949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28477 + ... + 32130.

It is an arithmetic number, because the mean of its divisors is an integer number (7879040).

Almost surely, 2^110728989 is an apocalyptic number.

It is an amenable number.

110728989 is a deficient number, since it is larger than the sum of its proper divisors (78367971).

110728989 is a wasteful number, since it uses less digits than its factorization.

110728989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60649 (or 60646 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 110728989 is about 10522.7842798377. The cubic root of 110728989 is about 480.1981083285.

The spelling of 110728989 in words is "one hundred ten million, seven hundred twenty-eight thousand, nine hundred eighty-nine".