380309983 has 2 divisors, whose sum is σ = 380309984. Its totient is φ = 380309982.

The previous prime is 380309981. The next prime is 380309999. The reversal of 380309983 is 389903083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380309983 - 2¹ = 380309981 is a prime.

Together with 380309981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380309981) 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, 190154991 + 190154992.

It is an arithmetic number, because the mean of its divisors is an integer number (190154992).

Almost surely, 2^380309983 is an apocalyptic number.

380309983 is a deficient number, since it is larger than the sum of its proper divisors (1).

380309983 is an equidigital number, since it uses as much as digits as its factorization.

380309983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 380309983 is about 19501.5379649914. The cubic root of 380309983 is about 724.5125430391.

The spelling of 380309983 in words is "three hundred eighty million, three hundred nine thousand, nine hundred eighty-three".