12120984 has 24 divisors (see below), whose sum is σ = 32827860. Its totient is φ = 4040304.

The previous prime is 12120967. The next prime is 12120989. The reversal of 12120984 is 48902121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84102 + ... + 84245.

Almost surely, 2^12120984 is an apocalyptic number.

It is an amenable number.

12120984 is an abundant number, since it is smaller than the sum of its proper divisors (20706876).

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

12120984 is a wasteful number, since it uses less digits than its factorization.

12120984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168359 (or 168352 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12120984 is about 3481.5203575450. The cubic root of 12120984 is about 229.7096777974.

The spelling of 12120984 in words is "twelve million, one hundred twenty thousand, nine hundred eighty-four".