388885 has 16 divisors (see below), whose sum is σ = 548352. Its totient is φ = 259200.

The previous prime is 388879. The next prime is 388891. The reversal of 388885 is 588883.

388885 is nontrivially palindromic in base 6.

It is an interprime number because it is at equal distance from previous prime (388879) and next prime (388891).

It is not a de Polignac number, because 388885 - 2⁷ = 388757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (34272).

2³⁸⁸⁸⁸⁵ is an apocalyptic number.

388885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

388885 is a deficient number, since it is larger than the sum of its proper divisors (159467).

388885 is a wasteful number, since it uses less digits than its factorization.

388885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324.

The product of its digits is 61440, while the sum is 40.

The square root of 388885 is about 623.6064464067. The cubic root of 388885 is about 72.9917423574.

It can be divided in two parts, 3 and 88885, that added together give a palindrome (88888).

The spelling of 388885 in words is "three hundred eighty-eight thousand, eight hundred eighty-five".