7481856 has 40 divisors (see below), whose sum is σ = 19936224. Its totient is φ = 2493440.

The previous prime is 7481809. The next prime is 7481857. The reversal of 7481856 is 6581847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7481857) 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, 900 + ... + 3971.

Almost surely, 2^7481856 is an apocalyptic number.

It is an amenable number.

7481856 is an abundant number, since it is smaller than the sum of its proper divisors (12454368).

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

7481856 is an equidigital number, since it uses as much as digits as its factorization.

7481856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892 (or 4876 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 7481856 is about 2735.2981555947. The cubic root of 7481856 is about 195.5854071356.

Subtracting from 7481856 its reverse (6581847), we obtain a palindrome (900009).

The spelling of 7481856 in words is "seven million, four hundred eighty-one thousand, eight hundred fifty-six".