6463447 has 4 divisors (see below), whose sum is σ = 6536160. Its totient is φ = 6390736.

The previous prime is 6463441. The next prime is 6463463. The reversal of 6463447 is 7443646.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6463447 is a prime.

It is a super-2 number, since 2×6463447² = 83552294243618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463441) 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, 36223 + ... + 36400.

It is an arithmetic number, because the mean of its divisors is an integer number (1634040).

Almost surely, 2^6463447 is an apocalyptic number.

6463447 is a deficient number, since it is larger than the sum of its proper divisors (72713).

6463447 is an equidigital number, since it uses as much as digits as its factorization.

6463447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72712.

The product of its digits is 48384, while the sum is 34.

The square root of 6463447 is about 2542.3310169999. The cubic root of 6463447 is about 186.2750680190.

The spelling of 6463447 in words is "six million, four hundred sixty-three thousand, four hundred forty-seven".