384493399 has 2 divisors, whose sum is σ = 384493400. Its totient is φ = 384493398.

The previous prime is 384493393. The next prime is 384493423. The reversal of 384493399 is 993394483.

It is a weak prime.

It is an emirp because it is prime and its reverse (993394483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384493399 - 2⁷ = 384493271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384493393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192246699 + 192246700.

It is an arithmetic number, because the mean of its divisors is an integer number (192246700).

Almost surely, 2^384493399 is an apocalyptic number.

384493399 is a deficient number, since it is larger than the sum of its proper divisors (1).

384493399 is an equidigital number, since it uses as much as digits as its factorization.

384493399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424, while the sum is 52.

The square root of 384493399 is about 19608.5032320165. The cubic root of 384493399 is about 727.1594113552.

The spelling of 384493399 in words is "three hundred eighty-four million, four hundred ninety-three thousand, three hundred ninety-nine".