384241321 has 2 divisors, whose sum is σ = 384241322. Its totient is φ = 384241320.

The previous prime is 384241229. The next prime is 384241331. The reversal of 384241321 is 123142483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334341225 + 49900096 = 18285^2 + 7064^2 .

It is a cyclic number.

It is not a de Polignac number, because 384241321 - 2¹⁵ = 384208553 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384241321.

It is not a weakly prime, because it can be changed into another prime (384241331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192120660 + 192120661.

It is an arithmetic number, because the mean of its divisors is an integer number (192120661).

Almost surely, 2^384241321 is an apocalyptic number.

It is an amenable number.

384241321 is a deficient number, since it is larger than the sum of its proper divisors (1).

384241321 is an equidigital number, since it uses as much as digits as its factorization.

384241321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 384241321 is about 19602.0744055317. The cubic root of 384241321 is about 727.0004654425. Note that the first 3 decimals are identical.

The spelling of 384241321 in words is "three hundred eighty-four million, two hundred forty-one thousand, three hundred twenty-one".