8773221 has 8 divisors (see below), whose sum is σ = 11983104. Its totient is φ = 5706080.

The previous prime is 8773211. The next prime is 8773223. The reversal of 8773221 is 1223778.

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 8773221 - 2⁶ = 8773157 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8773223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35541 + ... + 35786.

It is an arithmetic number, because the mean of its divisors is an integer number (1497888).

Almost surely, 2^8773221 is an apocalyptic number.

It is an amenable number.

8773221 is a deficient number, since it is larger than the sum of its proper divisors (3209883).

8773221 is a wasteful number, since it uses less digits than its factorization.

8773221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71371.

The product of its digits is 4704, while the sum is 30.

The square root of 8773221 is about 2961.9623562767. The cubic root of 8773221 is about 206.2463903868.

Adding to 8773221 its reverse (1223778), we get a palindrome (9996999).

The spelling of 8773221 in words is "eight million, seven hundred seventy-three thousand, two hundred twenty-one".