389804747 has 16 divisors (see below), whose sum is σ = 427939200. Its totient is φ = 353418240.

The previous prime is 389804719. The next prime is 389804749. The reversal of 389804747 is 747408983.

It is a cyclic number.

It is not a de Polignac number, because 389804747 - 2⁶ = 389804683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389804695 and 389804704.

It is not an unprimeable number, because it can be changed into a prime (389804749) 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 15 ways as a sum of consecutive naturals, for example, 374654 + ... + 375692.

It is an arithmetic number, because the mean of its divisors is an integer number (26746200).

Almost surely, 2^389804747 is an apocalyptic number.

389804747 is a deficient number, since it is larger than the sum of its proper divisors (38134453).

389804747 is a wasteful number, since it uses less digits than its factorization.

389804747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 389804747 is about 19743.4735292451. The cubic root of 389804747 is about 730.4924100060.

The spelling of 389804747 in words is "three hundred eighty-nine million, eight hundred four thousand, seven hundred forty-seven".