13887755 has 16 divisors (see below), whose sum is σ = 19111680. Its totient is φ = 9490272.

The previous prime is 13887743. The next prime is 13887761. The reversal of 13887755 is 55778831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13887755 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 14192 + ... + 15138.

It is an arithmetic number, because the mean of its divisors is an integer number (1194480).

Almost surely, 2^13887755 is an apocalyptic number.

13887755 is a deficient number, since it is larger than the sum of its proper divisors (5223925).

13887755 is an equidigital number, since it uses as much as digits as its factorization.

13887755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its digits is 235200, while the sum is 44.

The square root of 13887755 is about 3726.6278322365. The cubic root of 13887755 is about 240.3683868035.

The spelling of 13887755 in words is "thirteen million, eight hundred eighty-seven thousand, seven hundred fifty-five".