12428837 has 2 divisors, whose sum is σ = 12428838. Its totient is φ = 12428836.

The previous prime is 12428827. The next prime is 12428891. The reversal of 12428837 is 73882421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11062276 + 1366561 = 3326^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 12428837 - 2¹⁰ = 12427813 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12428797 and 12428806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12428827) 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 as a sum of consecutive naturals, namely, 6214418 + 6214419.

It is an arithmetic number, because the mean of its divisors is an integer number (6214419).

Almost surely, 2^12428837 is an apocalyptic number.

It is an amenable number.

12428837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12428837 is an equidigital number, since it uses as much as digits as its factorization.

12428837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 35.

The square root of 12428837 is about 3525.4555733976. The cubic root of 12428837 is about 231.6381907503.

The spelling of 12428837 in words is "twelve million, four hundred twenty-eight thousand, eight hundred thirty-seven".