13788788 has 12 divisors (see below), whose sum is σ = 25986660. Its totient is φ = 6364032.

The previous prime is 13788787. The next prime is 13788791. The reversal of 13788788 is 88788731.

13788788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 5654884 = 2852^2 + 2378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13788781) 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, 132533 + ... + 132636.

It is an arithmetic number, because the mean of its divisors is an integer number (2165555).

Almost surely, 2^13788788 is an apocalyptic number.

It is an amenable number.

13788788 is a deficient number, since it is larger than the sum of its proper divisors (12197872).

13788788 is a wasteful number, since it uses less digits than its factorization.

13788788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265186 (or 265184 counting only the distinct ones).

The product of its digits is 602112, while the sum is 50.

The square root of 13788788 is about 3713.3257330862. The cubic root of 13788788 is about 239.7960535920.

The spelling of 13788788 in words is "thirteen million, seven hundred eighty-eight thousand, seven hundred eighty-eight".