879656280 has 64 divisors (see below), whose sum is σ = 2641282560. Its totient is φ = 234369408.

The previous prime is 879656273. The next prime is 879656287. The reversal of 879656280 is 82656978.

It is a Cunningham number, because it is equal to 29659²-1.

It is an interprime number because it is at equal distance from previous prime (879656273) and next prime (879656287).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879656287) 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 15 ways as a sum of consecutive naturals, for example, 175489 + ... + 180431.

It is an arithmetic number, because the mean of its divisors is an integer number (41270040).

Almost surely, 2^879656280 is an apocalyptic number.

It is an amenable number.

879656280 is an abundant number, since it is smaller than the sum of its proper divisors (1761626280).

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

879656280 is a wasteful number, since it uses less digits than its factorization.

879656280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440 (or 6436 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 879656280 is about 29658.9999831417. Note that the first 4 decimals coincide. The cubic root of 879656280 is about 958.1591894957.

The spelling of 879656280 in words is "eight hundred seventy-nine million, six hundred fifty-six thousand, two hundred eighty".