13939403 has 8 divisors (see below), whose sum is σ = 14597376. Its totient is φ = 13285800.

The previous prime is 13939391. The next prime is 13939411. The reversal of 13939403 is 30493931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13939403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13939403.

It is not an unprimeable number, because it can be changed into a prime (13939463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6698 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (1824672).

Almost surely, 2^13939403 is an apocalyptic number.

13939403 is a deficient number, since it is larger than the sum of its proper divisors (657973).

13939403 is a wasteful number, since it uses less digits than its factorization.

13939403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 13939403 is about 3733.5509906790. The cubic root of 13939403 is about 240.6659916222.

The spelling of 13939403 in words is "thirteen million, nine hundred thirty-nine thousand, four hundred three".