384102889 has 4 divisors (see below), whose sum is σ = 384470100. Its totient is φ = 383735680.

The previous prime is 384102869. The next prime is 384102911. The reversal of 384102889 is 988201483.

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 258662889 + 125440000 = 16083^2 + 11200^2 .

It is a cyclic number.

It is not a de Polignac number, because 384102889 - 2⁵ = 384102857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384102869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 182032 + ... + 184129.

It is an arithmetic number, because the mean of its divisors is an integer number (96117525).

Almost surely, 2^384102889 is an apocalyptic number.

It is an amenable number.

384102889 is a deficient number, since it is larger than the sum of its proper divisors (367211).

384102889 is a wasteful number, since it uses less digits than its factorization.

384102889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367210.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 384102889 is about 19598.5430325828. The cubic root of 384102889 is about 726.9131485999.

The spelling of 384102889 in words is "three hundred eighty-four million, one hundred two thousand, eight hundred eighty-nine".