12646628 has 12 divisors (see below), whose sum is σ = 23296560. Its totient is φ = 5990472.

The previous prime is 12646597. The next prime is 12646661. The reversal of 12646628 is 82664621.

It is a super-5 number, since 5×12646628⁵ (a number of 37 digits) contains 55555 as substring.

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, 83126 + ... + 83277.

It is an arithmetic number, because the mean of its divisors is an integer number (1941380).

Almost surely, 2^12646628 is an apocalyptic number.

It is an amenable number.

12646628 is a deficient number, since it is larger than the sum of its proper divisors (10649932).

12646628 is a wasteful number, since it uses less digits than its factorization.

12646628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166426 (or 166424 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 12646628 is about 3556.2097800889. The cubic root of 12646628 is about 232.9833656087.

The spelling of 12646628 in words is "twelve million, six hundred forty-six thousand, six hundred twenty-eight".