389864343 has 32 divisors (see below), whose sum is σ = 583759872. Its totient is φ = 229424000.

The previous prime is 389864341. The next prime is 389864347. The reversal of 389864343 is 343468983.

It is a cyclic number.

It is not a de Polignac number, because 389864343 - 2¹ = 389864341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389864292 and 389864301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389864341) 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 31 ways as a sum of consecutive naturals, for example, 175546 + ... + 177752.

It is an arithmetic number, because the mean of its divisors is an integer number (18242496).

Almost surely, 2^389864343 is an apocalyptic number.

389864343 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

389864343 is a deficient number, since it is larger than the sum of its proper divisors (193895529).

389864343 is a wasteful number, since it uses less digits than its factorization.

389864343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its digits is 1492992, while the sum is 48.

The square root of 389864343 is about 19744.9827297975. The cubic root of 389864343 is about 730.5296356577.

The spelling of 389864343 in words is "three hundred eighty-nine million, eight hundred sixty-four thousand, three hundred forty-three".