13988303 has 4 divisors (see below), whose sum is σ = 15986640. Its totient is φ = 11989968.

The previous prime is 13988291. The next prime is 13988321. The reversal of 13988303 is 30388931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30388931 = 47 ⋅646573.

It is a cyclic number.

It is not a de Polignac number, because 13988303 - 2²⁰ = 12939727 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 (13988203) 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, 999158 + ... + 999171.

It is an arithmetic number, because the mean of its divisors is an integer number (3996660).

Almost surely, 2^13988303 is an apocalyptic number.

13988303 is a deficient number, since it is larger than the sum of its proper divisors (1998337).

13988303 is an equidigital number, since it uses as much as digits as its factorization.

13988303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998336.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 13988303 is about 3740.0939827764. The cubic root of 13988303 is about 240.9470852532.

The spelling of 13988303 in words is "thirteen million, nine hundred eighty-eight thousand, three hundred three".