12729628 has 12 divisors (see below), whose sum is σ = 22879192. Its totient is φ = 6192720.

The previous prime is 12729611. The next prime is 12729641. The reversal of 12729628 is 82692721.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

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, 42858 + ... + 43153.

Almost surely, 2^12729628 is an apocalyptic number.

It is an amenable number.

12729628 is a deficient number, since it is larger than the sum of its proper divisors (10149564).

12729628 is a wasteful number, since it uses less digits than its factorization.

12729628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86052 (or 86050 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 12729628 is about 3567.8604232789. The cubic root of 12729628 is about 233.4919456709.

The spelling of 12729628 in words is "twelve million, seven hundred twenty-nine thousand, six hundred twenty-eight".