6424247 has 4 divisors (see below), whose sum is σ = 6442800. Its totient is φ = 6405696.

The previous prime is 6424241. The next prime is 6424277. The reversal of 6424247 is 7424246.

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

It is a cyclic number.

It is not a de Polignac number, because 6424247 - 2²² = 2229943 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 4² + 2¹⁷ + 4³ + 2²¹ + 4¹¹ + 7³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6424241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8747 + ... + 9452.

It is an arithmetic number, because the mean of its divisors is an integer number (1610700).

Almost surely, 2^6424247 is an apocalyptic number.

6424247 is a deficient number, since it is larger than the sum of its proper divisors (18553).

6424247 is a wasteful number, since it uses less digits than its factorization.

6424247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552.

The product of its digits is 10752, while the sum is 29.

The square root of 6424247 is about 2534.6098319071. The cubic root of 6424247 is about 185.8977257909.

Subtracting 6424247 from its reverse (7424246), we obtain a palindrome (999999).

The spelling of 6424247 in words is "six million, four hundred twenty-four thousand, two hundred forty-seven".