1089106984 has 16 divisors (see below), whose sum is σ = 2333800800. Its totient is φ = 466760112.

The previous prime is 1089106981. The next prime is 1089107011. The reversal of 1089106984 is 4896019801.

It is not an unprimeable number, because it can be changed into a prime (1089106981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9724114 + ... + 9724225.

It is an arithmetic number, because the mean of its divisors is an integer number (145862550).

Almost surely, 2^1089106984 is an apocalyptic number.

1089106984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1089106984 is an abundant number, since it is smaller than the sum of its proper divisors (1244693816).

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

1089106984 is a wasteful number, since it uses less digits than its factorization.

1089106984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19448352 (or 19448348 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 1089106984 is about 33001.6209298877. The cubic root of 1089106984 is about 1028.8613375846.

The spelling of 1089106984 in words is "one billion, eighty-nine million, one hundred six thousand, nine hundred eighty-four".