389866323 has 32 divisors (see below), whose sum is σ = 669007872. Its totient is φ = 195991200.

The previous prime is 389866319. The next prime is 389866327. The reversal of 389866323 is 323668983.

It is an interprime number because it is at equal distance from previous prime (389866319) and next prime (389866327).

It is not a de Polignac number, because 389866323 - 2² = 389866319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389866327) 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 in 31 ways as a sum of consecutive naturals, for example, 20061 + ... + 34382.

It is an arithmetic number, because the mean of its divisors is an integer number (20906496).

Almost surely, 2^389866323 is an apocalyptic number.

389866323 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

389866323 is a deficient number, since it is larger than the sum of its proper divisors (279141549).

389866323 is a wasteful number, since it uses less digits than its factorization.

389866323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54495.

The product of its digits is 1119744, while the sum is 48.

The square root of 389866323 is about 19745.0328690534. The cubic root of 389866323 is about 730.5308723667.

The spelling of 389866323 in words is "three hundred eighty-nine million, eight hundred sixty-six thousand, three hundred twenty-three".