12685028 has 6 divisors (see below), whose sum is σ = 22198806. Its totient is φ = 6342512.

The previous prime is 12685019. The next prime is 12685033. The reversal of 12685028 is 82058621.

It can be written as a sum of positive squares in only one way, i.e., 6770404 + 5914624 = 2602^2 + 2432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12684985 and 12685003.

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 as a sum of consecutive naturals, namely, 1585625 + ... + 1585632.

It is an arithmetic number, because the mean of its divisors is an integer number (3699801).

Almost surely, 2^12685028 is an apocalyptic number.

It is an amenable number.

12685028 is a deficient number, since it is larger than the sum of its proper divisors (9513778).

12685028 is a wasteful number, since it uses less digits than its factorization.

12685028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171261 (or 3171259 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 12685028 is about 3561.6046945162. The cubic root of 12685028 is about 233.2189362136.

The spelling of 12685028 in words is "twelve million, six hundred eighty-five thousand, twenty-eight".