8824221 has 40 divisors (see below), whose sum is σ = 15333120. Its totient is φ = 4953312.

The previous prime is 8824219. The next prime is 8824229. The reversal of 8824221 is 1224288.

8824221 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8824221 - 2¹ = 8824219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8824229) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44695 + ... + 44891.

It is an arithmetic number, because the mean of its divisors is an integer number (383328).

Almost surely, 2^8824221 is an apocalyptic number.

8824221 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8824221 is a deficient number, since it is larger than the sum of its proper divisors (6508899).

8824221 is a wasteful number, since it uses less digits than its factorization.

8824221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 286 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 8824221 is about 2970.5590382957. The cubic root of 8824221 is about 206.6452651558.

It can be divided in two parts, 8824 and 221, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 8824221 in words is "eight million, eight hundred twenty-four thousand, two hundred twenty-one".