388688613 has 8 divisors (see below), whose sum is σ = 518368800. Its totient is φ = 259067088.

The previous prime is 388688593. The next prime is 388688617. The reversal of 388688613 is 316886883.

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

It is not a de Polignac number, because 388688613 - 2⁹ = 388688101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388688617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4303 + ... + 28211.

It is an arithmetic number, because the mean of its divisors is an integer number (64796100).

Almost surely, 2^388688613 is an apocalyptic number.

It is an amenable number.

388688613 is a deficient number, since it is larger than the sum of its proper divisors (129680187).

388688613 is a wasteful number, since it uses less digits than its factorization.

388688613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29331.

The product of its digits is 1327104, while the sum is 51.

The square root of 388688613 is about 19715.1873691325. The cubic root of 388688613 is about 729.7945334049.

The spelling of 388688613 in words is "three hundred eighty-eight million, six hundred eighty-eight thousand, six hundred thirteen".