8854821 has 18 divisors (see below), whose sum is σ = 13103142. Its totient is φ = 5760720.

The previous prime is 8854799. The next prime is 8854829. The reversal of 8854821 is 1284588.

It can be written as a sum of positive squares in only one way, i.e., 5225796 + 3629025 = 2286^2 + 1905^2 .

It is not a de Polignac number, because 8854821 - 2⁵ = 8854789 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8854829) 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 17 ways as a sum of consecutive naturals, for example, 69660 + ... + 69786.

Almost surely, 2^8854821 is an apocalyptic number.

It is an amenable number.

8854821 is a deficient number, since it is larger than the sum of its proper divisors (4248321).

8854821 is a wasteful number, since it uses less digits than its factorization.

8854821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 191 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 8854821 is about 2975.7051265204. The cubic root of 8854821 is about 206.8838527867.

The spelling of 8854821 in words is "eight million, eight hundred fifty-four thousand, eight hundred twenty-one".