7873280 has 36 divisors (see below), whose sum is σ = 18862032. Its totient is φ = 3148800.

The previous prime is 7873279. The next prime is 7873289. The reversal of 7873280 is 823787.

It is a happy number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 7873280.

It is not an unprimeable number, because it can be changed into a prime (7873289) 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 3 ways as a sum of consecutive naturals, for example, 1796 + ... + 4355.

Almost surely, 2^7873280 is an apocalyptic number.

It is an amenable number.

7873280 is an abundant number, since it is smaller than the sum of its proper divisors (10988752).

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

7873280 is an equidigital number, since it uses as much as digits as its factorization.

7873280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172 (or 6158 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 7873280 is about 2805.9365637876. The cubic root of 7873280 is about 198.9383747298.

The spelling of 7873280 in words is "seven million, eight hundred seventy-three thousand, two hundred eighty".