8221269 has 12 divisors (see below), whose sum is σ = 12751584. Its totient is φ = 4697784.

The previous prime is 8221267. The next prime is 8221273. The reversal of 8221269 is 9621228.

It is not a de Polignac number, because 8221269 - 2¹ = 8221267 is a prime.

It is a super-2 number, since 2×8221269² = 135178527940722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27817 + ... + 28110.

It is an arithmetic number, because the mean of its divisors is an integer number (1062632).

Almost surely, 2^8221269 is an apocalyptic number.

It is an amenable number.

8221269 is a deficient number, since it is larger than the sum of its proper divisors (4530315).

8221269 is a wasteful number, since it uses less digits than its factorization.

8221269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55944 (or 55937 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 8221269 is about 2867.2755361144. The cubic root of 8221269 is about 201.8271648428.

The spelling of 8221269 in words is "eight million, two hundred twenty-one thousand, two hundred sixty-nine".