13806211 has 2 divisors, whose sum is σ = 13806212. Its totient is φ = 13806210.

The previous prime is 13806131. The next prime is 13806229. The reversal of 13806211 is 11260831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13806211 - 2⁷ = 13806083 is a prime.

It is a super-2 number, since 2×13806211² = 381222924353042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13806241) 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 as a sum of consecutive naturals, namely, 6903105 + 6903106.

It is an arithmetic number, because the mean of its divisors is an integer number (6903106).

Almost surely, 2^13806211 is an apocalyptic number.

13806211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13806211 is an equidigital number, since it uses as much as digits as its factorization.

13806211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 13806211 is about 3715.6710026589. The cubic root of 13806211 is about 239.8970102091.

The spelling of 13806211 in words is "thirteen million, eight hundred six thousand, two hundred eleven".