388111 has 2 divisors, whose sum is σ = 388112. Its totient is φ = 388110.

The previous prime is 388109. The next prime is 388117. The reversal of 388111 is 111883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 388111 - 2¹ = 388109 is a prime.

Together with 388109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388117) 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, 194055 + 194056.

It is an arithmetic number, because the mean of its divisors is an integer number (194056).

2³⁸⁸¹¹¹ is an apocalyptic number.

388111 is a deficient number, since it is larger than the sum of its proper divisors (1).

388111 is an equidigital number, since it uses as much as digits as its factorization.

388111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 22.

The square root of 388111 is about 622.9855536046. The cubic root of 388111 is about 72.9432849031.

Adding to 388111 its reverse (111883), we get a palindrome (499994).

The spelling of 388111 in words is "three hundred eighty-eight thousand, one hundred eleven".