9621229 has 4 divisors (see below), whose sum is σ = 9825984. Its totient is φ = 9416476.

The previous prime is 9621223. The next prime is 9621233. The reversal of 9621229 is 9221269.

9621229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9221269 = 41 ⋅224909.

It is a cyclic number.

It is not a de Polignac number, because 9621229 - 2⁵ = 9621197 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 9621229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9621223) 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, 102307 + ... + 102400.

It is an arithmetic number, because the mean of its divisors is an integer number (2456496).

Almost surely, 2^9621229 is an apocalyptic number.

It is an amenable number.

9621229 is a deficient number, since it is larger than the sum of its proper divisors (204755).

9621229 is a wasteful number, since it uses less digits than its factorization.

9621229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204754.

The product of its digits is 3888, while the sum is 31.

The square root of 9621229 is about 3101.8106002785. The cubic root of 9621229 is about 212.6882594642.

The spelling of 9621229 in words is "nine million, six hundred twenty-one thousand, two hundred twenty-nine".