1108867789 has 32 divisors (see below), whose sum is σ = 1267985664. Its totient is φ = 963916800.

The previous prime is 1108867787. The next prime is 1108867801. The reversal of 1108867789 is 9877688011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1108867789 - 2¹ = 1108867787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108867783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1697787 + ... + 1698439.

It is an arithmetic number, because the mean of its divisors is an integer number (39624552).

Almost surely, 2^1108867789 is an apocalyptic number.

It is an amenable number.

1108867789 is a deficient number, since it is larger than the sum of its proper divisors (159117875).

1108867789 is a wasteful number, since it uses less digits than its factorization.

1108867789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 1354752, while the sum is 55.

The square root of 1108867789 is about 33299.6664998315. Note that the first 3 decimals coincide. The cubic root of 1108867789 is about 1035.0466466720.

The spelling of 1108867789 in words is "one billion, one hundred eight million, eight hundred sixty-seven thousand, seven hundred eighty-nine".