13856011 has 4 divisors (see below), whose sum is σ = 14921872. Its totient is φ = 12790152.

The previous prime is 13856009. The next prime is 13856027. The reversal of 13856011 is 11065831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13856011 - 2¹ = 13856009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13856911) 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 3 ways as a sum of consecutive naturals, for example, 532911 + ... + 532936.

It is an arithmetic number, because the mean of its divisors is an integer number (3730468).

Almost surely, 2^13856011 is an apocalyptic number.

13856011 is a deficient number, since it is larger than the sum of its proper divisors (1065861).

13856011 is a wasteful number, since it uses less digits than its factorization.

13856011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065860.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 13856011 is about 3722.3663172772. The cubic root of 13856011 is about 240.1851060382.

It can be divided in two parts, 1385 and 6011, that added together give a square (7396 = 86²).

The spelling of 13856011 in words is "thirteen million, eight hundred fifty-six thousand, eleven".