789638479 has 30 divisors (see below), whose sum is σ = 960227616. Its totient is φ = 648640440.

The previous prime is 789638459. The next prime is 789638489. The reversal of 789638479 is 974836987.

It is not a de Polignac number, because 789638479 - 2¹¹ = 789636431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789638429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7666342 + ... + 7666444.

Almost surely, 2^789638479 is an apocalyptic number.

789638479 is a deficient number, since it is larger than the sum of its proper divisors (170589137).

789638479 is an frugal number, since it uses more digits than its factorization.

789638479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 141 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The square root of 789638479 is about 28100.5067392031. The cubic root of 789638479 is about 924.2925114606.

The spelling of 789638479 in words is "seven hundred eighty-nine million, six hundred thirty-eight thousand, four hundred seventy-nine".