8993220 has 48 divisors (see below), whose sum is σ = 25867968. Its totient is φ = 2332800.

The previous prime is 8993197. The next prime is 8993233. The reversal of 8993220 is 223998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195 + ... + 4245.

It is an arithmetic number, because the mean of its divisors is an integer number (538916).

Almost surely, 2^8993220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8993220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12933984).

8993220 is an abundant number, since it is smaller than the sum of its proper divisors (16874748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8993220 is a wasteful number, since it uses less digits than its factorization.

8993220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 8993220 is about 2998.8697871031. The cubic root of 8993220 is about 207.9561359674.

The spelling of 8993220 in words is "eight million, nine hundred ninety-three thousand, two hundred twenty".