288789879 has 20 divisors (see below), whose sum is σ = 449213176. Its totient is φ = 165018672.

The previous prime is 288789833. The next prime is 288789889. The reversal of 288789879 is 978987882.

It is not a de Polignac number, because 288789879 - 2⁷ = 288789751 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 (288789889) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12844 + ... + 27249.

Almost surely, 2^288789879 is an apocalyptic number.

288789879 is a deficient number, since it is larger than the sum of its proper divisors (160423297).

288789879 is an frugal number, since it uses more digits than its factorization.

288789879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40124 (or 40103 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 66.

The square root of 288789879 is about 16993.8188468631. The cubic root of 288789879 is about 660.9886308537.

The spelling of 288789879 in words is "two hundred eighty-eight million, seven hundred eighty-nine thousand, eight hundred seventy-nine".