388169 has 2 divisors, whose sum is σ = 388170. Its totient is φ = 388168.

The previous prime is 388163. The next prime is 388177. The reversal of 388169 is 961883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 126025 = 512^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 388169 - 2⁸ = 387913 is a prime.

It is a super-2 number, since 2×388169² = 301350345122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (388163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194084 + 194085.

It is an arithmetic number, because the mean of its divisors is an integer number (194085).

2³⁸⁸¹⁶⁹ is an apocalyptic number.

It is an amenable number.

388169 is a deficient number, since it is larger than the sum of its proper divisors (1).

388169 is an equidigital number, since it uses as much as digits as its factorization.

388169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 388169 is about 623.0321019017. The cubic root of 388169 is about 72.9469183137.

The spelling of 388169 in words is "three hundred eighty-eight thousand, one hundred sixty-nine".