384789975 has 24 divisors (see below), whose sum is σ = 642375552. Its totient is φ = 203224800.

The previous prime is 384789959. The next prime is 384789989. The reversal of 384789975 is 579987483.

It is not a de Polignac number, because 384789975 - 2⁴ = 384789959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17181 + ... + 32630.

It is an arithmetic number, because the mean of its divisors is an integer number (26765648).

Almost surely, 2^384789975 is an apocalyptic number.

384789975 is a deficient number, since it is larger than the sum of its proper divisors (257585577).

384789975 is a wasteful number, since it uses less digits than its factorization.

384789975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49927 (or 49922 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The square root of 384789975 is about 19616.0642076845. The cubic root of 384789975 is about 727.3463262283.

The spelling of 384789975 in words is "three hundred eighty-four million, seven hundred eighty-nine thousand, nine hundred seventy-five".