12748427 has 2 divisors, whose sum is σ = 12748428. Its totient is φ = 12748426.

The previous prime is 12748403. The next prime is 12748447. The reversal of 12748427 is 72484721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12748427 - 2⁶ = 12748363 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (12748447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6374213 + 6374214.

It is an arithmetic number, because the mean of its divisors is an integer number (6374214).

Almost surely, 2^12748427 is an apocalyptic number.

12748427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12748427 is an equidigital number, since it uses as much as digits as its factorization.

12748427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 35.

The square root of 12748427 is about 3570.4939434202. The cubic root of 12748427 is about 233.6068287376.

The spelling of 12748427 in words is "twelve million, seven hundred forty-eight thousand, four hundred twenty-seven".