384689443 has 2 divisors, whose sum is σ = 384689444. Its totient is φ = 384689442.

The previous prime is 384689419. The next prime is 384689489. The reversal of 384689443 is 344986483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384689443 - 2²⁵ = 351135011 is a prime.

It is not a weakly prime, because it can be changed into another prime (384686443) 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, 192344721 + 192344722.

It is an arithmetic number, because the mean of its divisors is an integer number (192344722).

Almost surely, 2^384689443 is an apocalyptic number.

384689443 is a deficient number, since it is larger than the sum of its proper divisors (1).

384689443 is an equidigital number, since it uses as much as digits as its factorization.

384689443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 49.

The square root of 384689443 is about 19613.5015486781. The cubic root of 384689443 is about 727.2829774280.

The spelling of 384689443 in words is "three hundred eighty-four million, six hundred eighty-nine thousand, four hundred forty-three".