6448427 has 2 divisors, whose sum is σ = 6448428. Its totient is φ = 6448426.

The previous prime is 6448399. The next prime is 6448451. The reversal of 6448427 is 7248446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6448427 - 2⁶ = 6448363 is a prime.

It is not a weakly prime, because it can be changed into another prime (6448327) by changing a digit.

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 as a sum of consecutive naturals, namely, 3224213 + 3224214.

It is an arithmetic number, because the mean of its divisors is an integer number (3224214).

Almost surely, 2^6448427 is an apocalyptic number.

6448427 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448427 is an equidigital number, since it uses as much as digits as its factorization.

6448427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 35.

The square root of 6448427 is about 2539.3753168841. The cubic root of 6448427 is about 186.1306651138.

The spelling of 6448427 in words is "six million, four hundred forty-eight thousand, four hundred twenty-seven".