6424663 has 4 divisors (see below), whose sum is σ = 7342480. Its totient is φ = 5506848.

The previous prime is 6424661. The next prime is 6424669. The reversal of 6424663 is 3664246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3664246 = 2 ⋅1832123.

It is a cyclic number.

It is not a de Polignac number, because 6424663 - 2¹ = 6424661 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 4⁸ + 2²¹ + 4¹¹ + 6⁴ + 6⁶ + 3⁹ .

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458898 + ... + 458911.

It is an arithmetic number, because the mean of its divisors is an integer number (1835620).

Almost surely, 2^6424663 is an apocalyptic number.

6424663 is a deficient number, since it is larger than the sum of its proper divisors (917817).

6424663 is an equidigital number, since it uses as much as digits as its factorization.

6424663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917816.

The product of its digits is 20736, while the sum is 31.

The square root of 6424663 is about 2534.6918944913. The cubic root of 6424663 is about 185.9017382863.

The spelling of 6424663 in words is "six million, four hundred twenty-four thousand, six hundred sixty-three".