13878803 has 2 divisors, whose sum is σ = 13878804. Its totient is φ = 13878802.

The previous prime is 13878779. The next prime is 13878841. The reversal of 13878803 is 30887831.

13878803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13878841) can be obtained adding 13878803 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13878803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13878883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6939401 + 6939402.

It is an arithmetic number, because the mean of its divisors is an integer number (6939402).

Almost surely, 2^13878803 is an apocalyptic number.

13878803 is a deficient number, since it is larger than the sum of its proper divisors (1).

13878803 is an equidigital number, since it uses as much as digits as its factorization.

13878803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 13878803 is about 3725.4265527588. The cubic root of 13878803 is about 240.3167288188.

Subtracting 13878803 from its reverse (30887831), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 13878803 in words is "thirteen million, eight hundred seventy-eight thousand, eight hundred three".