8667280 has 40 divisors (see below), whose sum is σ = 21340152. Its totient is φ = 3262464.

The previous prime is 8667271. The next prime is 8667289. The reversal of 8667280 is 827668.

8667280 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8667271) and next prime (8667289).

It can be written as a sum of positive squares in 4 ways, for example, as 3154176 + 5513104 = 1776^2 + 2348^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (8667289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1827 + ... + 4546.

Almost surely, 2^8667280 is an apocalyptic number.

8667280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8667280 is an abundant number, since it is smaller than the sum of its proper divisors (12672872).

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

8667280 is a wasteful number, since it uses less digits than its factorization.

8667280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403 (or 6397 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 8667280 is about 2944.0244564202. The cubic root of 8667280 is about 205.4128503328.

The spelling of 8667280 in words is "eight million, six hundred sixty-seven thousand, two hundred eighty".