8208229 has 4 divisors (see below), whose sum is σ = 8691084. Its totient is φ = 7725376.

The previous prime is 8208199. The next prime is 8208251. The reversal of 8208229 is 9228028.

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 6385729 + 1822500 = 2527^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 8208229 - 2⁵ = 8208197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8208229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8208929) 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, 241402 + ... + 241435.

It is an arithmetic number, because the mean of its divisors is an integer number (2172771).

Almost surely, 2^8208229 is an apocalyptic number.

It is an amenable number.

8208229 is a deficient number, since it is larger than the sum of its proper divisors (482855).

8208229 is a wasteful number, since it uses less digits than its factorization.

8208229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482854.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 8208229 is about 2865.0006980802. Note that the first 3 decimals coincide. The cubic root of 8208229 is about 201.7204003466.

The spelling of 8208229 in words is "eight million, two hundred eight thousand, two hundred twenty-nine".