8221488 has 80 divisors (see below), whose sum is σ = 24212736. Its totient is φ = 2379520.

The previous prime is 8221487. The next prime is 8221513. The reversal of 8221488 is 8841228.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (8221487) 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 15 ways as a sum of consecutive naturals, for example, 11806 + ... + 12482.

Almost surely, 2^8221488 is an apocalyptic number.

8221488 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8221488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12106368).

8221488 is an abundant number, since it is smaller than the sum of its proper divisors (15991248).

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

8221488 is a wasteful number, since it uses less digits than its factorization.

8221488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 716 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 8221488 is about 2867.3137254232. The cubic root of 8221488 is about 201.8289569326.

The spelling of 8221488 in words is "eight million, two hundred twenty-one thousand, four hundred eighty-eight".