9221869 has 4 divisors (see below), whose sum is σ = 9229180. Its totient is φ = 9214560.

The previous prime is 9221867. The next prime is 9221879. The reversal of 9221869 is 9681229.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8094025 + 1127844 = 2845^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 9221869 - 2¹ = 9221867 is a prime.

It is a super-2 number, since 2×9221869² = 170085735706322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9221867) 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, 1224 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (2307295).

Almost surely, 2^9221869 is an apocalyptic number.

It is an amenable number.

9221869 is a deficient number, since it is larger than the sum of its proper divisors (7311).

9221869 is a wasteful number, since it uses less digits than its factorization.

9221869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310.

The product of its digits is 15552, while the sum is 37.

The square root of 9221869 is about 3036.7530357275. The cubic root of 9221869 is about 209.7038076807.

The spelling of 9221869 in words is "nine million, two hundred twenty-one thousand, eight hundred sixty-nine".