8263505 has 4 divisors (see below), whose sum is σ = 9916212. Its totient is φ = 6610800.

The previous prime is 8263501. The next prime is 8263511. The reversal of 8263505 is 5053628.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3671056 + 4592449 = 1916^2 + 2143^2 .

It is not a de Polignac number, because 8263505 - 2² = 8263501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8263501) 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 3 ways as a sum of consecutive naturals, for example, 826346 + ... + 826355.

It is an arithmetic number, because the mean of its divisors is an integer number (2479053).

Almost surely, 2^8263505 is an apocalyptic number.

It is an amenable number.

8263505 is a deficient number, since it is larger than the sum of its proper divisors (1652707).

8263505 is a wasteful number, since it uses less digits than its factorization.

8263505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652706.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 8263505 is about 2874.6312807037. The cubic root of 8263505 is about 202.1721973811.

The spelling of 8263505 in words is "eight million, two hundred sixty-three thousand, five hundred five".