12728007 has 12 divisors (see below), whose sum is σ = 18425160. Its totient is φ = 8466768.

The previous prime is 12727991. The next prime is 12728029. The reversal of 12728007 is 70082721.

12728007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12728007 - 2⁴ = 12727991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3744 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (1535430).

Almost surely, 2^12728007 is an apocalyptic number.

12728007 is a deficient number, since it is larger than the sum of its proper divisors (5697153).

12728007 is a wasteful number, since it uses less digits than its factorization.

12728007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 12728007 is about 3567.6332490883. The cubic root of 12728007 is about 233.4820342393.

The spelling of 12728007 in words is "twelve million, seven hundred twenty-eight thousand, seven".