12428727 has 16 divisors (see below), whose sum is σ = 17052672. Its totient is φ = 8048160.

The previous prime is 12428723. The next prime is 12428729. The reversal of 12428727 is 72782421.

It is not a de Polignac number, because 12428727 - 2² = 12428723 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12428723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25278 + ... + 25764.

It is an arithmetic number, because the mean of its divisors is an integer number (1065792).

Almost surely, 2^12428727 is an apocalyptic number.

12428727 is a deficient number, since it is larger than the sum of its proper divisors (4623945).

12428727 is a wasteful number, since it uses less digits than its factorization.

12428727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 12544, while the sum is 33.

The square root of 12428727 is about 3525.4399725424. The cubic root of 12428727 is about 231.6375073859.

The spelling of 12428727 in words is "twelve million, four hundred twenty-eight thousand, seven hundred twenty-seven".