388855 has 8 divisors (see below), whose sum is σ = 472752. Its totient is φ = 307008.

The previous prime is 388837. The next prime is 388859. The reversal of 388855 is 558883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388855 - 2⁵ = 388823 is a prime.

It is a super-2 number, since 2×388855² = 302416422050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54 + ... + 883.

It is an arithmetic number, because the mean of its divisors is an integer number (59094).

2³⁸⁸⁸⁵⁵ is an apocalyptic number.

388855 is a deficient number, since it is larger than the sum of its proper divisors (83897).

388855 is an equidigital number, since it uses as much as digits as its factorization.

388855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its digits is 38400, while the sum is 37.

The square root of 388855 is about 623.5823923108. The cubic root of 388855 is about 72.9898653598.

The spelling of 388855 in words is "three hundred eighty-eight thousand, eight hundred fifty-five".