388600085 has 8 divisors (see below), whose sum is σ = 478923576. Its totient is φ = 302477760.

The previous prime is 388600063. The next prime is 388600099. The reversal of 388600085 is 580006883.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 128165041 + 260435044 = 11321^2 + 16138^2 .

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

It is not a de Polignac number, because 388600085 - 2⁶ = 388600021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050086 + ... + 1050455.

It is an arithmetic number, because the mean of its divisors is an integer number (59865447).

Almost surely, 2^388600085 is an apocalyptic number.

It is an amenable number.

388600085 is a deficient number, since it is larger than the sum of its proper divisors (90323491).

388600085 is a wasteful number, since it uses less digits than its factorization.

388600085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100583.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 388600085 is about 19712.9420686005. The cubic root of 388600085 is about 729.7391230208.

The spelling of 388600085 in words is "three hundred eighty-eight million, six hundred thousand, eighty-five".