879988566 has 8 divisors (see below), whose sum is σ = 1759977144. Its totient is φ = 293329520.

The previous prime is 879988511. The next prime is 879988573. The reversal of 879988566 is 665889978.

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

879988566 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 879988497 and 879988506.

It is a congruent number.

It is an unprimeable number.

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, 73332375 + ... + 73332386.

It is an arithmetic number, because the mean of its divisors is an integer number (219997143).

Almost surely, 2^879988566 is an apocalyptic number.

879988566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879988566 is a wasteful number, since it uses less digits than its factorization.

879988566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146664766.

The product of its digits is 52254720, while the sum is 66.

The square root of 879988566 is about 29664.6012277260. The cubic root of 879988566 is about 958.2798210086.

The spelling of 879988566 in words is "eight hundred seventy-nine million, nine hundred eighty-eight thousand, five hundred sixty-six".