8217480 has 96 divisors (see below), whose sum is σ = 26000640. Its totient is φ = 2075520.

The previous prime is 8217479. The next prime is 8217523. The reversal of 8217480 is 847128.

8217480 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174817 + ... + 174863.

It is an arithmetic number, because the mean of its divisors is an integer number (270840).

Almost surely, 2^8217480 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 8217480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13000320).

8217480 is an abundant number, since it is smaller than the sum of its proper divisors (17783160).

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

8217480 is a wasteful number, since it uses less digits than its factorization.

8217480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 8217480 is about 2866.6147282117. The cubic root of 8217480 is about 201.7961541947.

The spelling of 8217480 in words is "eight million, two hundred seventeen thousand, four hundred eighty".