6424664 has 16 divisors (see below), whose sum is σ = 12085200. Its totient is φ = 3201952.

The previous prime is 6424661. The next prime is 6424669. The reversal of 6424664 is 4664246.

It is a d-powerful number, because it can be written as 6³ + 4⁴ + 2¹³ + 4⁹ + 6⁷ + 6⁸ + 4¹¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 6424664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6424661) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1754 + ... + 3990.

It is an arithmetic number, because the mean of its divisors is an integer number (755325).

Almost surely, 2^6424664 is an apocalyptic number.

It is an amenable number.

6424664 is a deficient number, since it is larger than the sum of its proper divisors (5660536).

6424664 is a wasteful number, since it uses less digits than its factorization.

6424664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602 (or 2598 counting only the distinct ones).

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

The square root of 6424664 is about 2534.6920917539. The cubic root of 6424664 is about 185.9017479315.

The spelling of 6424664 in words is "six million, four hundred twenty-four thousand, six hundred sixty-four".