389704193 has 24 divisors (see below), whose sum is σ = 430133760. Its totient is φ = 352615680.

The previous prime is 389704127. The next prime is 389704201. The reversal of 389704193 is 391407983.

It is a happy number.

It is not a de Polignac number, because 389704193 - 2¹² = 389700097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389704793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1085348 + ... + 1085706.

It is an arithmetic number, because the mean of its divisors is an integer number (17922240).

Almost surely, 2^389704193 is an apocalyptic number.

It is an amenable number.

389704193 is a deficient number, since it is larger than the sum of its proper divisors (40429567).

389704193 is a wasteful number, since it uses less digits than its factorization.

389704193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 389704193 is about 19740.9268526075. The cubic root of 389704193 is about 730.4295920171.

The spelling of 389704193 in words is "three hundred eighty-nine million, seven hundred four thousand, one hundred ninety-three".