879785899 has 4 divisors (see below), whose sum is σ = 926090440. Its totient is φ = 833481360.

The previous prime is 879785869. The next prime is 879785909. The reversal of 879785899 is 998587978.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 879785899 - 2⁵ = 879785867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (879785839) 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 3 ways as a sum of consecutive naturals, for example, 23152242 + ... + 23152279.

It is an arithmetic number, because the mean of its divisors is an integer number (231522610).

Almost surely, 2^879785899 is an apocalyptic number.

879785899 is a deficient number, since it is larger than the sum of its proper divisors (46304541).

879785899 is a wasteful number, since it uses less digits than its factorization.

879785899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46304540.

The product of its digits is 91445760, while the sum is 70.

The square root of 879785899 is about 29661.1850572427. The cubic root of 879785899 is about 958.2062493679.

The spelling of 879785899 in words is "eight hundred seventy-nine million, seven hundred eighty-five thousand, eight hundred ninety-nine".