13885564 has 24 divisors (see below), whose sum is σ = 30296448. Its totient is φ = 5409840.

The previous prime is 13885559. The next prime is 13885589. The reversal of 13885564 is 46558831.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22234 + ... + 22849.

It is an arithmetic number, because the mean of its divisors is an integer number (1262352).

Almost surely, 2^13885564 is an apocalyptic number.

13885564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13885564 is an abundant number, since it is smaller than the sum of its proper divisors (16410884).

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

13885564 is a wasteful number, since it uses less digits than its factorization.

13885564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45105 (or 45103 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 13885564 is about 3726.3338551450. Note that the first 3 decimals coincide. The cubic root of 13885564 is about 240.3557455755.

The spelling of 13885564 in words is "thirteen million, eight hundred eighty-five thousand, five hundred sixty-four".