388872005 has 8 divisors (see below), whose sum is σ = 477498912. Its totient is φ = 303862608.

The previous prime is 388871981. The next prime is 388872013. The reversal of 388872005 is 500278883.

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 388872005 - 2⁶ = 388871941 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904139 + ... + 904568.

It is an arithmetic number, because the mean of its divisors is an integer number (59687364).

Almost surely, 2^388872005 is an apocalyptic number.

It is an amenable number.

388872005 is a deficient number, since it is larger than the sum of its proper divisors (88626907).

388872005 is a wasteful number, since it uses less digits than its factorization.

388872005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808755.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 388872005 is about 19719.8378543030. The cubic root of 388872005 is about 729.9092931645.

The spelling of 388872005 in words is "three hundred eighty-eight million, eight hundred seventy-two thousand, five".