384771005 has 8 divisors (see below), whose sum is σ = 463393752. Its totient is φ = 306704448.

The previous prime is 384770987. The next prime is 384771007. The reversal of 384771005 is 500177483.

It can be written as a sum of positive squares in 4 ways, for example, as 57486724 + 327284281 = 7582^2 + 18091^2 .

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 384771005 - 2²² = 380576701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384771007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137522 + ... + 140291.

It is an arithmetic number, because the mean of its divisors is an integer number (57924219).

Almost surely, 2^384771005 is an apocalyptic number.

It is an amenable number.

384771005 is a deficient number, since it is larger than the sum of its proper divisors (78622747).

384771005 is a wasteful number, since it uses less digits than its factorization.

384771005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278095.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 384771005 is about 19615.5806694576. The cubic root of 384771005 is about 727.3343733990.

The spelling of 384771005 in words is "three hundred eighty-four million, seven hundred seventy-one thousand, five".