389980379 has 2 divisors, whose sum is σ = 389980380. Its totient is φ = 389980378.

The previous prime is 389980303. The next prime is 389980411. The reversal of 389980379 is 973089983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389980379 - 2¹² = 389976283 is a prime.

It is not a weakly prime, because it can be changed into another prime (389980879) 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, 194990189 + 194990190.

It is an arithmetic number, because the mean of its divisors is an integer number (194990190).

Almost surely, 2^389980379 is an apocalyptic number.

389980379 is a deficient number, since it is larger than the sum of its proper divisors (1).

389980379 is an equidigital number, since it uses as much as digits as its factorization.

389980379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 389980379 is about 19747.9208779051. The cubic root of 389980379 is about 730.6021047356.

The spelling of 389980379 in words is "three hundred eighty-nine million, nine hundred eighty thousand, three hundred seventy-nine".