389729534 has 4 divisors (see below), whose sum is σ = 584594304. Its totient is φ = 194864766.

The previous prime is 389729519. The next prime is 389729537. The reversal of 389729534 is 435927983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435927983 = 31 ⋅14062193.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389729537) 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 as a sum of consecutive naturals, namely, 97432382 + ... + 97432385.

It is an arithmetic number, because the mean of its divisors is an integer number (146148576).

Almost surely, 2^389729534 is an apocalyptic number.

389729534 is a deficient number, since it is larger than the sum of its proper divisors (194864770).

389729534 is a wasteful number, since it uses less digits than its factorization.

389729534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194864769.

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

The square root of 389729534 is about 19741.5686813384. The cubic root of 389729534 is about 730.4454240383.

The spelling of 389729534 in words is "three hundred eighty-nine million, seven hundred twenty-nine thousand, five hundred thirty-four".