8278243 has 8 divisors (see below), whose sum is σ = 8755200. Its totient is φ = 7805448.

The previous prime is 8278211. The next prime is 8278247. The reversal of 8278243 is 3428728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8278243 - 2⁵ = 8278211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8278199 and 8278208.

It is not an unprimeable number, because it can be changed into a prime (8278247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3630 + ... + 5452.

It is an arithmetic number, because the mean of its divisors is an integer number (1094400).

Almost surely, 2^8278243 is an apocalyptic number.

8278243 is a deficient number, since it is larger than the sum of its proper divisors (476957).

8278243 is a wasteful number, since it uses less digits than its factorization.

8278243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its digits is 21504, while the sum is 34.

The square root of 8278243 is about 2877.1935979353. The cubic root of 8278243 is about 202.2923176857.

The spelling of 8278243 in words is "eight million, two hundred seventy-eight thousand, two hundred forty-three".