789681538 has 8 divisors (see below), whose sum is σ = 1222732800. Its totient is φ = 382103940.

The previous prime is 789681481. The next prime is 789681577. The reversal of 789681538 is 835186987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6368338 + ... + 6368461.

It is an arithmetic number, because the mean of its divisors is an integer number (152841600).

Almost surely, 2^789681538 is an apocalyptic number.

789681538 is a deficient number, since it is larger than the sum of its proper divisors (433051262).

789681538 is a wasteful number, since it uses less digits than its factorization.

789681538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736832.

The product of its digits is 2903040, while the sum is 55.

The square root of 789681538 is about 28101.2728893194. The cubic root of 789681538 is about 924.3093117175.

The spelling of 789681538 in words is "seven hundred eighty-nine million, six hundred eighty-one thousand, five hundred thirty-eight".