12705208 has 16 divisors (see below), whose sum is σ = 24466680. Its totient is φ = 6180768.

The previous prime is 12705197. The next prime is 12705211. The reversal of 12705208 is 80250721.

It is a super-2 number, since 2×12705208² = 322844620646528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21166 + ... + 21757.

Almost surely, 2^12705208 is an apocalyptic number.

It is an amenable number.

12705208 is a deficient number, since it is larger than the sum of its proper divisors (11761472).

12705208 is a wasteful number, since it uses less digits than its factorization.

12705208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42966 (or 42962 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12705208 is about 3564.4365613656. The cubic root of 12705208 is about 233.3425429472.

Adding to 12705208 its reverse (80250721), we get a palindrome (92955929).

The spelling of 12705208 in words is "twelve million, seven hundred five thousand, two hundred eight".