13938211 has 16 divisors (see below), whose sum is σ = 16372224. Its totient is φ = 11620224.

The previous prime is 13938209. The next prime is 13938227. The reversal of 13938211 is 11283931.

13938211 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13938211 - 2¹ = 13938209 is a prime.

It is a Duffinian number.

13938211 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 13938211.

It is not an unprimeable number, because it can be changed into a prime (13938271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52866 + ... + 53128.

It is an arithmetic number, because the mean of its divisors is an integer number (1023264).

Almost surely, 2^13938211 is an apocalyptic number.

13938211 is a deficient number, since it is larger than the sum of its proper divisors (2434013).

13938211 is a wasteful number, since it uses less digits than its factorization.

13938211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450.

The product of its digits is 1296, while the sum is 28.

The square root of 13938211 is about 3733.3913537158. The cubic root of 13938211 is about 240.6591314040.

It can be divided in two parts, 1393 and 8211, that added together give a square (9604 = 98²).

The spelling of 13938211 in words is "thirteen million, nine hundred thirty-eight thousand, two hundred eleven".