13788487 has 2 divisors, whose sum is σ = 13788488. Its totient is φ = 13788486.

The previous prime is 13788469. The next prime is 13788493. The reversal of 13788487 is 78488731.

13788487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13788487 - 2¹⁵ = 13755719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13788497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6894243 + 6894244.

It is an arithmetic number, because the mean of its divisors is an integer number (6894244).

Almost surely, 2^13788487 is an apocalyptic number.

13788487 is a deficient number, since it is larger than the sum of its proper divisors (1).

13788487 is an equidigital number, since it uses as much as digits as its factorization.

13788487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 46.

The square root of 13788487 is about 3713.2852031591. The cubic root of 13788487 is about 239.7943087170.

The spelling of 13788487 in words is "thirteen million, seven hundred eighty-eight thousand, four hundred eighty-seven".