12886628 has 12 divisors (see below), whose sum is σ = 23101932. Its totient is φ = 6286080.

The previous prime is 12886589. The next prime is 12886649. The reversal of 12886628 is 82668821.

It can be written as a sum of positive squares in 2 ways, for example, as 5607424 + 7279204 = 2368^2 + 2698^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39125 + ... + 39452.

It is an arithmetic number, because the mean of its divisors is an integer number (1925161).

Almost surely, 2^12886628 is an apocalyptic number.

It is an amenable number.

12886628 is a deficient number, since it is larger than the sum of its proper divisors (10215304).

12886628 is a wasteful number, since it uses less digits than its factorization.

12886628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78622 (or 78620 counting only the distinct ones).

The product of its digits is 73728, while the sum is 41.

The square root of 12886628 is about 3589.7949802182. The cubic root of 12886628 is about 234.4479451288.

The spelling of 12886628 in words is "twelve million, eight hundred eighty-six thousand, six hundred twenty-eight".