79280 has 20 divisors (see below), whose sum is σ = 184512. Its totient is φ = 31680.

The previous prime is 79279. The next prime is 79283. The reversal of 79280 is 8297.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (79283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416 + ... + 575.

2⁷⁹²⁸⁰ is an apocalyptic number.

It is an amenable number.

79280 is an abundant number, since it is smaller than the sum of its proper divisors (105232).

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 (92256).

79280 is a wasteful number, since it uses less digits than its factorization.

79280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 79280 is about 281.5670435260. The cubic root of 79280 is about 42.9590379703.

The spelling of 79280 in words is "seventy-nine thousand, two hundred eighty".