384185089 has 4 divisors (see below), whose sum is σ = 385779460. Its totient is φ = 382590720.

The previous prime is 384185059. The next prime is 384185093. The reversal of 384185089 is 980581483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153388225 + 230796864 = 12385^2 + 15192^2 .

It is a cyclic number.

It is not a de Polignac number, because 384185089 - 2⁷ = 384184961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384185059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796824 + ... + 797305.

It is an arithmetic number, because the mean of its divisors is an integer number (96444865).

Almost surely, 2^384185089 is an apocalyptic number.

It is an amenable number.

384185089 is a deficient number, since it is larger than the sum of its proper divisors (1594371).

384185089 is a wasteful number, since it uses less digits than its factorization.

384185089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594370.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 384185089 is about 19600.6400150607. The cubic root of 384185089 is about 726.9649992894.

The spelling of 384185089 in words is "three hundred eighty-four million, one hundred eighty-five thousand, eighty-nine".