6427646 has 8 divisors (see below), whose sum is σ = 9715464. Its totient is φ = 3189160.

The previous prime is 6427639. The next prime is 6427651. The reversal of 6427646 is 6467246.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 12005 + ... + 12528.

It is an arithmetic number, because the mean of its divisors is an integer number (1214433).

Almost surely, 2^6427646 is an apocalyptic number.

6427646 is a deficient number, since it is larger than the sum of its proper divisors (3287818).

6427646 is a wasteful number, since it uses less digits than its factorization.

6427646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24666.

The product of its digits is 48384, while the sum is 35.

The square root of 6427646 is about 2535.2802606418. The cubic root of 6427646 is about 185.9305055063.

The spelling of 6427646 in words is "six million, four hundred twenty-seven thousand, six hundred forty-six".