8279872 has 28 divisors (see below), whose sum is σ = 16747236. Its totient is φ = 4060160.

The previous prime is 8279857. The next prime is 8279881. The reversal of 8279872 is 2789728.

It can be written as a sum of positive squares in 2 ways, for example, as 3154176 + 5125696 = 1776^2 + 2264^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172 + ... + 4612.

Almost surely, 2^8279872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8279872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8373618).

8279872 is an abundant number, since it is smaller than the sum of its proper divisors (8467364).

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

8279872 is a wasteful number, since it uses less digits than its factorization.

8279872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2496 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 8279872 is about 2877.4766723642. The cubic root of 8279872 is about 202.3055859027.

The spelling of 8279872 in words is "eight million, two hundred seventy-nine thousand, eight hundred seventy-two".