389930315 has 4 divisors (see below), whose sum is σ = 467916384. Its totient is φ = 311944248.

The previous prime is 389930311. The next prime is 389930323. The reversal of 389930315 is 513039983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513039983 = 79 ⋅6494177.

It is a cyclic number.

It is not a de Polignac number, because 389930315 - 2² = 389930311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389930311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38993027 + ... + 38993036.

It is an arithmetic number, because the mean of its divisors is an integer number (116979096).

Almost surely, 2^389930315 is an apocalyptic number.

389930315 is a deficient number, since it is larger than the sum of its proper divisors (77986069).

389930315 is an equidigital number, since it uses as much as digits as its factorization.

389930315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77986068.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 389930315 is about 19746.6532607427. The cubic root of 389930315 is about 730.5708395480.

The spelling of 389930315 in words is "three hundred eighty-nine million, nine hundred thirty thousand, three hundred fifteen".