384978283 has 2 divisors, whose sum is σ = 384978284. Its totient is φ = 384978282.

The previous prime is 384978271. The next prime is 384978289. The reversal of 384978283 is 382879483.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384978283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384978283.

It is not a weakly prime, because it can be changed into another prime (384978289) 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, 192489141 + 192489142.

It is an arithmetic number, because the mean of its divisors is an integer number (192489142).

Almost surely, 2^384978283 is an apocalyptic number.

384978283 is a deficient number, since it is larger than the sum of its proper divisors (1).

384978283 is an equidigital number, since it uses as much as digits as its factorization.

384978283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The square root of 384978283 is about 19620.8634621415. The cubic root of 384978283 is about 727.4649561341.

The spelling of 384978283 in words is "three hundred eighty-four million, nine hundred seventy-eight thousand, two hundred eighty-three".