389583681 has 16 divisors (see below), whose sum is σ = 538863360. Its totient is φ = 250174080.

The previous prime is 389583673. The next prime is 389583703. The reversal of 389583681 is 186385983.

It is not a de Polignac number, because 389583681 - 2³ = 389583673 is a prime.

It is a super-2 number, since 2×389583681² = 303550889003019522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389583631) 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 15 ways as a sum of consecutive naturals, for example, 10330 + ... + 29763.

It is an arithmetic number, because the mean of its divisors is an integer number (33678960).

Almost surely, 2^389583681 is an apocalyptic number.

It is an amenable number.

389583681 is a deficient number, since it is larger than the sum of its proper divisors (149279679).

389583681 is a wasteful number, since it uses less digits than its factorization.

389583681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40216.

The product of its digits is 1244160, while the sum is 51.

The square root of 389583681 is about 19737.8742776420. The cubic root of 389583681 is about 730.3542916501.

The spelling of 389583681 in words is "three hundred eighty-nine million, five hundred eighty-three thousand, six hundred eighty-one".