9905223 has 8 divisors (see below), whose sum is σ = 13456368. Its totient is φ = 6478784.

The previous prime is 9905221. The next prime is 9905239. The reversal of 9905223 is 3225099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9905223 - 2¹ = 9905221 is a prime.

It is a super-2 number, since 2×9905223² = 196226885359458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9905221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30990 + ... + 31307.

It is an arithmetic number, because the mean of its divisors is an integer number (1682046).

Almost surely, 2^9905223 is an apocalyptic number.

9905223 is a deficient number, since it is larger than the sum of its proper divisors (3551145).

9905223 is a wasteful number, since it uses less digits than its factorization.

9905223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62353.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 9905223 is about 3147.2564242527. The cubic root of 9905223 is about 214.7606711318.

The spelling of 9905223 in words is "nine million, nine hundred five thousand, two hundred twenty-three".