6424646 has 4 divisors (see below), whose sum is σ = 9636972. Its totient is φ = 3212322.

The previous prime is 6424637. The next prime is 6424661. The reversal of 6424646 is 6464246.

It is a semiprime because it is the product of two primes.

It is a Curzon 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, 1606160 + ... + 1606163.

It is an arithmetic number, because the mean of its divisors is an integer number (2409243).

Almost surely, 2^6424646 is an apocalyptic number.

6424646 is a deficient number, since it is larger than the sum of its proper divisors (3212326).

6424646 is a wasteful number, since it uses less digits than its factorization.

6424646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212325.

The product of its digits is 27648, while the sum is 32.

The square root of 6424646 is about 2534.6885410243. The cubic root of 6424646 is about 185.9015743175.

The spelling of 6424646 in words is "six million, four hundred twenty-four thousand, six hundred forty-six".