384659665 has 16 divisors (see below), whose sum is σ = 500403456. Its totient is φ = 282168000.

The previous prime is 384659657. The next prime is 384659669. The reversal of 384659665 is 566956483.

It is not a de Polignac number, because 384659665 - 2³ = 384659657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384659669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9781 + ... + 29410.

It is an arithmetic number, because the mean of its divisors is an integer number (31275216).

Almost surely, 2^384659665 is an apocalyptic number.

It is an amenable number.

384659665 is a deficient number, since it is larger than the sum of its proper divisors (115743791).

384659665 is a wasteful number, since it uses less digits than its factorization.

384659665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39360.

The product of its digits is 4665600, while the sum is 52.

The square root of 384659665 is about 19612.7424140532. The cubic root of 384659665 is about 727.2642111290.

The spelling of 384659665 in words is "three hundred eighty-four million, six hundred fifty-nine thousand, six hundred sixty-five".