8505480 has 32 divisors (see below), whose sum is σ = 25516800. Its totient is φ = 2268096.

The previous prime is 8505473. The next prime is 8505481. The reversal of 8505480 is 845058.

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

It is not an unprimeable number, because it can be changed into a prime (8505481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35320 + ... + 35559.

It is an arithmetic number, because the mean of its divisors is an integer number (797400).

Almost surely, 2^8505480 is an apocalyptic number.

It is an amenable number.

8505480 is an abundant number, since it is smaller than the sum of its proper divisors (17011320).

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

8505480 is a wasteful number, since it uses less digits than its factorization.

8505480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70893 (or 70889 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 8505480 is about 2916.4156082424. The cubic root of 8505480 is about 204.1266034584.

The spelling of 8505480 in words is "eight million, five hundred five thousand, four hundred eighty".