8227805 has 4 divisors (see below), whose sum is σ = 9873372. Its totient is φ = 6582240.

The previous prime is 8227799. The next prime is 8227811. The reversal of 8227805 is 5087228.

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

It is an interprime number because it is at equal distance from previous prime (8227799) and next prime (8227811).

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 6416089 = 1346^2 + 2533^2 .

It is not a de Polignac number, because 8227805 - 2⁴ = 8227789 is a prime.

It is a Duffinian 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, 822776 + ... + 822785.

It is an arithmetic number, because the mean of its divisors is an integer number (2468343).

Almost surely, 2^8227805 is an apocalyptic number.

It is an amenable number.

8227805 is a deficient number, since it is larger than the sum of its proper divisors (1645567).

8227805 is a wasteful number, since it uses less digits than its factorization.

8227805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645566.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 8227805 is about 2868.4150675939. The cubic root of 8227805 is about 201.8806356199.

The spelling of 8227805 in words is "eight million, two hundred twenty-seven thousand, eight hundred five".