8228911 has 4 divisors (see below), whose sum is σ = 8451352. Its totient is φ = 8006472.

The previous prime is 8228903. The next prime is 8228947. The reversal of 8228911 is 1198228.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8228911 - 2³ = 8228903 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8228951) 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, 111165 + ... + 111238.

It is an arithmetic number, because the mean of its divisors is an integer number (2112838).

Almost surely, 2^8228911 is an apocalyptic number.

8228911 is a deficient number, since it is larger than the sum of its proper divisors (222441).

8228911 is a wasteful number, since it uses less digits than its factorization.

8228911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222440.

The product of its digits is 2304, while the sum is 31.

The square root of 8228911 is about 2868.6078505087. The cubic root of 8228911 is about 201.8896809639.

The spelling of 8228911 in words is "eight million, two hundred twenty-eight thousand, nine hundred eleven".