12628971 has 12 divisors (see below), whose sum is σ = 18666648. Its totient is φ = 8223264.

The previous prime is 12628969. The next prime is 12628981. The reversal of 12628971 is 17982621.

It is not a de Polignac number, because 12628971 - 2¹ = 12628969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12628921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15930 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (1555554).

Almost surely, 2^12628971 is an apocalyptic number.

12628971 is a deficient number, since it is larger than the sum of its proper divisors (6037677).

12628971 is a wasteful number, since it uses less digits than its factorization.

12628971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32682 (or 32679 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 12628971 is about 3553.7263541246. The cubic root of 12628971 is about 232.8748860122.

The spelling of 12628971 in words is "twelve million, six hundred twenty-eight thousand, nine hundred seventy-one".