879686220 has 72 divisors (see below), whose sum is σ = 2865273264. Its totient is φ = 201070464.

The previous prime is 879686191. The next prime is 879686239. The reversal of 879686220 is 22686978.

It is a happy number.

It is a super-3 number, since 3×879686220³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 879686220.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146667 + ... + 152546.

It is an arithmetic number, because the mean of its divisors is an integer number (39795462).

Almost surely, 2^879686220 is an apocalyptic number.

It is an amenable number.

879686220 is an abundant number, since it is smaller than the sum of its proper divisors (1985587044).

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

879686220 is a wasteful number, since it uses less digits than its factorization.

879686220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299239 (or 299230 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 879686220 is about 29659.5047160265. The cubic root of 879686220 is about 958.1700600146.

The spelling of 879686220 in words is "eight hundred seventy-nine million, six hundred eighty-six thousand, two hundred twenty".