388926227 has 2 divisors, whose sum is σ = 388926228. Its totient is φ = 388926226.

The previous prime is 388926193. The next prime is 388926259. The reversal of 388926227 is 722629883.

It is a strong prime.

It is an emirp because it is prime and its reverse (722629883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 388926227 - 2¹⁸ = 388664083 is a prime.

It is a super-2 number, since 2×388926227² = 302527220096911058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (388946227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194463113 + 194463114.

It is an arithmetic number, because the mean of its divisors is an integer number (194463114).

Almost surely, 2^388926227 is an apocalyptic number.

388926227 is a deficient number, since it is larger than the sum of its proper divisors (1).

388926227 is an equidigital number, since it uses as much as digits as its factorization.

388926227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 388926227 is about 19721.2126148470. The cubic root of 388926227 is about 729.9432163250.

The spelling of 388926227 in words is "three hundred eighty-eight million, nine hundred twenty-six thousand, two hundred twenty-seven".