13938911 has 8 divisors (see below), whose sum is σ = 15978144. Its totient is φ = 11911680.

The previous prime is 13938907. The next prime is 13938919. The reversal of 13938911 is 11983931.

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

It is a cyclic number.

It is not a de Polignac number, because 13938911 - 2² = 13938907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (1997268).

Almost surely, 2^13938911 is an apocalyptic number.

13938911 is a deficient number, since it is larger than the sum of its proper divisors (2039233).

13938911 is an equidigital number, since it uses as much as digits as its factorization.

13938911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001.

The product of its digits is 5832, while the sum is 35.

The square root of 13938911 is about 3733.4851010818. The cubic root of 13938911 is about 240.6631601030.

The spelling of 13938911 in words is "thirteen million, nine hundred thirty-eight thousand, nine hundred eleven".