6427744 has 12 divisors (see below), whose sum is σ = 12654684. Its totient is φ = 3213856.

The previous prime is 6427739. The next prime is 6427783. The reversal of 6427744 is 4477246.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100402 + ... + 100465.

It is an arithmetic number, because the mean of its divisors is an integer number (1054557).

Almost surely, 2^6427744 is an apocalyptic number.

It is an amenable number.

6427744 is a deficient number, since it is larger than the sum of its proper divisors (6226940).

6427744 is a wasteful number, since it uses less digits than its factorization.

6427744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200877 (or 200869 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The square root of 6427744 is about 2535.2995878199. The cubic root of 6427744 is about 185.9314504399.

The spelling of 6427744 in words is "six million, four hundred twenty-seven thousand, seven hundred forty-four".