389339513 has 2 divisors, whose sum is σ = 389339514. Its totient is φ = 389339512.

The previous prime is 389339477. The next prime is 389339543. The reversal of 389339513 is 315933983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264615289 + 124724224 = 16267^2 + 11168^2 .

It is a cyclic number.

It is not a de Polignac number, because 389339513 - 2⁸ = 389339257 is a prime.

It is not a weakly prime, because it can be changed into another prime (389339543) 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, 194669756 + 194669757.

It is an arithmetic number, because the mean of its divisors is an integer number (194669757).

Almost surely, 2^389339513 is an apocalyptic number.

It is an amenable number.

389339513 is a deficient number, since it is larger than the sum of its proper divisors (1).

389339513 is an equidigital number, since it uses as much as digits as its factorization.

389339513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 44.

The square root of 389339513 is about 19731.6880423343. The cubic root of 389339513 is about 730.2016788109.

The spelling of 389339513 in words is "three hundred eighty-nine million, three hundred thirty-nine thousand, five hundred thirteen".