389324189 has 2 divisors, whose sum is σ = 389324190. Its totient is φ = 389324188.

The previous prime is 389324183. The next prime is 389324209. The reversal of 389324189 is 981423983.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203547289 + 185776900 = 14267^2 + 13630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389324189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389324183) 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 as a sum of consecutive naturals, namely, 194662094 + 194662095.

It is an arithmetic number, because the mean of its divisors is an integer number (194662095).

Almost surely, 2^389324189 is an apocalyptic number.

It is an amenable number.

389324189 is a deficient number, since it is larger than the sum of its proper divisors (1).

389324189 is an equidigital number, since it uses as much as digits as its factorization.

389324189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 389324189 is about 19731.2997291106. The cubic root of 389324189 is about 730.1920986913.

It can be divided in two parts, 3893 and 24189, that added together give a palindrome (28082).

The spelling of 389324189 in words is "three hundred eighty-nine million, three hundred twenty-four thousand, one hundred eighty-nine".