13861911 has 16 divisors (see below), whose sum is σ = 21208064. Its totient is φ = 7889184.

The previous prime is 13861909. The next prime is 13861927. The reversal of 13861911 is 11916831.

It is not a de Polignac number, because 13861911 - 2¹ = 13861909 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 (13861901) 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 15 ways as a sum of consecutive naturals, for example, 4626 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (1325504).

Almost surely, 2^13861911 is an apocalyptic number.

13861911 is a deficient number, since it is larger than the sum of its proper divisors (7346153).

13861911 is a wasteful number, since it uses less digits than its factorization.

13861911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670.

The product of its digits is 1296, while the sum is 30.

The square root of 13861911 is about 3723.1587395651. The cubic root of 13861911 is about 240.2191921119.

The spelling of 13861911 in words is "thirteen million, eight hundred sixty-one thousand, nine hundred eleven".