388085 has 4 divisors (see below), whose sum is σ = 465708. Its totient is φ = 310464.

The previous prime is 388081. The next prime is 388099. The reversal of 388085 is 580883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580883 = 211 ⋅2753.

It can be written as a sum of positive squares in 2 ways, for example, as 192721 + 195364 = 439^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 388085 - 2² = 388081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 388085.

It is not an unprimeable number, because it can be changed into a prime (388081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38804 + ... + 38813.

It is an arithmetic number, because the mean of its divisors is an integer number (116427).

2³⁸⁸⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

388085 is a deficient number, since it is larger than the sum of its proper divisors (77623).

388085 is an equidigital number, since it uses as much as digits as its factorization.

388085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77622.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 388085 is about 622.9646859975. The cubic root of 388085 is about 72.9416560154.

It can be divided in two parts, 3 and 88085, that added together give a palindrome (88088).

The spelling of 388085 in words is "three hundred eighty-eight thousand, eighty-five".