13808863 has 4 divisors (see below), whose sum is σ = 13825728. Its totient is φ = 13792000.

The previous prime is 13808831. The next prime is 13808869. The reversal of 13808863 is 36880831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13808863 - 2⁵ = 13808831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13808869) 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, 7138 + ... + 8863.

It is an arithmetic number, because the mean of its divisors is an integer number (3456432).

Almost surely, 2^13808863 is an apocalyptic number.

13808863 is a deficient number, since it is larger than the sum of its proper divisors (16865).

13808863 is an equidigital number, since it uses as much as digits as its factorization.

13808863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16864.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 13808863 is about 3716.0278524252. The cubic root of 13808863 is about 239.9123696281.

It can be divided in two parts, 13808 and 863, that multiplied together give a square (11916304 = 3452²).

The spelling of 13808863 in words is "thirteen million, eight hundred eight thousand, eight hundred sixty-three".