389341009 has 4 divisors (see below), whose sum is σ = 389385216. Its totient is φ = 389296804.

The previous prime is 389340971. The next prime is 389341019. The reversal of 389341009 is 900143983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 389341009 - 2¹³ = 389332817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389341019) 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, 3889 + ... + 28174.

It is an arithmetic number, because the mean of its divisors is an integer number (97346304).

Almost surely, 2^389341009 is an apocalyptic number.

It is an amenable number.

389341009 is a deficient number, since it is larger than the sum of its proper divisors (44207).

389341009 is a wasteful number, since it uses less digits than its factorization.

389341009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44206.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 389341009 is about 19731.7259508640. The cubic root of 389341009 is about 730.2026140532.

The spelling of 389341009 in words is "three hundred eighty-nine million, three hundred forty-one thousand, nine".