8278563 has 4 divisors (see below), whose sum is σ = 11038088. Its totient is φ = 5519040.

The previous prime is 8278561. The next prime is 8278577. The reversal of 8278563 is 3658728.

8278563 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8278563 - 2¹ = 8278561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8278561) 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, 1379758 + ... + 1379763.

It is an arithmetic number, because the mean of its divisors is an integer number (2759522).

Almost surely, 2^8278563 is an apocalyptic number.

8278563 is a deficient number, since it is larger than the sum of its proper divisors (2759525).

8278563 is a wasteful number, since it uses less digits than its factorization.

8278563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759524.

The product of its digits is 80640, while the sum is 39.

The square root of 8278563 is about 2877.2492071421. The cubic root of 8278563 is about 202.2949242255.

The spelling of 8278563 in words is "eight million, two hundred seventy-eight thousand, five hundred sixty-three".