13788885 has 32 divisors (see below), whose sum is σ = 24248448. Its totient is φ = 6635520.

The previous prime is 13788881. The next prime is 13788911. The reversal of 13788885 is 58888731.

It is not a de Polignac number, because 13788885 - 2² = 13788881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13788881) 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 31 ways as a sum of consecutive naturals, for example, 31629 + ... + 32061.

It is an arithmetic number, because the mean of its divisors is an integer number (757764).

Almost surely, 2^13788885 is an apocalyptic number.

13788885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13788885 is a deficient number, since it is larger than the sum of its proper divisors (10459563).

13788885 is a wasteful number, since it uses less digits than its factorization.

13788885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its digits is 430080, while the sum is 48.

The square root of 13788885 is about 3713.3387941312. The cubic root of 13788885 is about 239.7966158886.

The spelling of 13788885 in words is "thirteen million, seven hundred eighty-eight thousand, eight hundred eighty-five".