879197886 has 144 divisors (see below), whose sum is σ = 2294562816. Its totient is φ = 242458272.

The previous prime is 879197861. The next prime is 879197903. The reversal of 879197886 is 688791978.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5264575 + ... + 5264741.

It is an arithmetic number, because the mean of its divisors is an integer number (15934464).

Almost surely, 2^879197886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879197886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147281408).

879197886 is an abundant number, since it is smaller than the sum of its proper divisors (1415364930).

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

879197886 is a wasteful number, since it uses less digits than its factorization.

879197886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 353 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 63.

The square root of 879197886 is about 29651.2712375035. The cubic root of 879197886 is about 957.9927264700.

It can be divided in two parts, 879 and 197886, that added together give a triangular number (198765 = T₆₃₀).

The spelling of 879197886 in words is "eight hundred seventy-nine million, one hundred ninety-seven thousand, eight hundred eighty-six".