7287337828 has 12 divisors (see below), whose sum is σ = 12753828220. Its totient is φ = 3643386912.

The previous prime is 7287337807. The next prime is 7287337903. The reversal of 7287337828 is 8287337827.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1159266304 + 6128071524 = 34048^2 + 78282^2 .

It is a super-4 number, since 4×7287337828⁴ (a number of 41 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5751 + ... + 120862.

Almost surely, 2^7287337828 is an apocalyptic number.

It is an amenable number.

7287337828 is a deficient number, since it is larger than the sum of its proper divisors (5466490392).

7287337828 is a wasteful number, since it uses less digits than its factorization.

7287337828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141006 (or 141004 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 55.

The square root of 7287337828 is about 85365.9055361097. The cubic root of 7287337828 is about 1938.7551644850.

Subtracting 7287337828 from its reverse (8287337827), we obtain a palindrome (999999999).

The spelling of 7287337828 in words is "seven billion, two hundred eighty-seven million, three hundred thirty-seven thousand, eight hundred twenty-eight".