13555984 has 20 divisors (see below), whose sum is σ = 28285516. Its totient is φ = 6256512.

The previous prime is 13555981. The next prime is 13555999. The reversal of 13555984 is 48955531.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 12960000 = 772^2 + 3600^2 .

It is a super-3 number, since 3×13555984³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13555981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32379 + ... + 32794.

Almost surely, 2^13555984 is an apocalyptic number.

It is an amenable number.

13555984 is an abundant number, since it is smaller than the sum of its proper divisors (14729532).

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

13555984 is a wasteful number, since it uses less digits than its factorization.

13555984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65194 (or 65188 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The square root of 13555984 is about 3681.8451895755. The cubic root of 13555984 is about 238.4388485255.

The spelling of 13555984 in words is "thirteen million, five hundred fifty-five thousand, nine hundred eighty-four".