12277828 has 12 divisors (see below), whose sum is σ = 21596652. Its totient is φ = 6107360.

The previous prime is 12277807. The next prime is 12277843. The reversal of 12277828 is 82877221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8773444 + 3504384 = 2962^2 + 1872^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7003 + ... + 8578.

It is an arithmetic number, because the mean of its divisors is an integer number (1799721).

Almost surely, 2^12277828 is an apocalyptic number.

It is an amenable number.

12277828 is a deficient number, since it is larger than the sum of its proper divisors (9318824).

12277828 is a wasteful number, since it uses less digits than its factorization.

12277828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15782 (or 15780 counting only the distinct ones).

The product of its digits is 25088, while the sum is 37.

The square root of 12277828 is about 3503.9731734133. The cubic root of 12277828 is about 230.6962393543.

The spelling of 12277828 in words is "twelve million, two hundred seventy-seven thousand, eight hundred twenty-eight".