79880 has 16 divisors (see below), whose sum is σ = 179820. Its totient is φ = 31936.

The previous prime is 79873. The next prime is 79889. The reversal of 79880 is 8897.

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 11236 = 262^2 + 106^2 .

It is not an unprimeable number, because it can be changed into a prime (79889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959 + ... + 1038.

2⁷⁹⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

79880 is an abundant number, since it is smaller than the sum of its proper divisors (99940).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89910).

79880 is a wasteful number, since it uses less digits than its factorization.

79880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 79880 is about 282.6305008310. The cubic root of 79880 is about 43.0671386726.

It can be divided in two parts, 798 and 80, that added together give a palindrome (878).

The spelling of 79880 in words is "seventy-nine thousand, eight hundred eighty".