13936993 has 8 divisors (see below), whose sum is σ = 15951488. Its totient is φ = 11928384.

The previous prime is 13936969. The next prime is 13936997. The reversal of 13936993 is 39963931.

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-13936993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13936997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6505 + ... + 8377.

It is an arithmetic number, because the mean of its divisors is an integer number (1993936).

Almost surely, 2^13936993 is an apocalyptic number.

It is an amenable number.

13936993 is a deficient number, since it is larger than the sum of its proper divisors (2014495).

13936993 is a wasteful number, since it uses less digits than its factorization.

13936993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943.

The product of its digits is 118098, while the sum is 43.

The square root of 13936993 is about 3733.2282276871. The cubic root of 13936993 is about 240.6521211461.

The spelling of 13936993 in words is "thirteen million, nine hundred thirty-six thousand, nine hundred ninety-three".