389459723 has 2 divisors, whose sum is σ = 389459724. Its totient is φ = 389459722.

The previous prime is 389459711. The next prime is 389459731. The reversal of 389459723 is 327954983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389459723 - 2⁶ = 389459659 is a prime.

It is not a weakly prime, because it can be changed into another prime (389459773) 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, 194729861 + 194729862.

It is an arithmetic number, because the mean of its divisors is an integer number (194729862).

Almost surely, 2^389459723 is an apocalyptic number.

389459723 is a deficient number, since it is larger than the sum of its proper divisors (1).

389459723 is an equidigital number, since it uses as much as digits as its factorization.

389459723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 389459723 is about 19734.7339227059. The cubic root of 389459723 is about 730.2768218917.

The spelling of 389459723 in words is "three hundred eighty-nine million, four hundred fifty-nine thousand, seven hundred twenty-three".