13808887 has 2 divisors, whose sum is σ = 13808888. Its totient is φ = 13808886.

The previous prime is 13808869. The next prime is 13808903. The reversal of 13808887 is 78880831.

It is a strong prime.

It is an emirp because it is prime and its reverse (78880831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13808887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13808287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904443 + 6904444.

It is an arithmetic number, because the mean of its divisors is an integer number (6904444).

Almost surely, 2^13808887 is an apocalyptic number.

13808887 is a deficient number, since it is larger than the sum of its proper divisors (1).

13808887 is an equidigital number, since it uses as much as digits as its factorization.

13808887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 13808887 is about 3716.0310816784. The cubic root of 13808887 is about 239.9125086184.

The spelling of 13808887 in words is "thirteen million, eight hundred eight thousand, eight hundred eighty-seven".