9554221 has 8 divisors (see below), whose sum is σ = 10144440. Its totient is φ = 8967168.

The previous prime is 9554219. The next prime is 9554309. The reversal of 9554221 is 1224559.

It can be written as a sum of positive squares in 4 ways, for example, as 373321 + 9180900 = 611^2 + 3030^2 .

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 9554221 - 2¹ = 9554219 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9554221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9554201) 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, 8965 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (1268055).

Almost surely, 2^9554221 is an apocalyptic number.

It is an amenable number.

9554221 is a deficient number, since it is larger than the sum of its proper divisors (590219).

9554221 is a wasteful number, since it uses less digits than its factorization.

9554221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583.

The product of its digits is 3600, while the sum is 28.

The square root of 9554221 is about 3090.9902943879. The cubic root of 9554221 is about 212.1933459224.

The spelling of 9554221 in words is "nine million, five hundred fifty-four thousand, two hundred twenty-one".