6464543 has 4 divisors (see below), whose sum is σ = 6470640. Its totient is φ = 6458448.

The previous prime is 6464537. The next prime is 6464551. The reversal of 6464543 is 3454646.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6464543 - 2⁸ = 6464287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464533) 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, 998 + ... + 3731.

It is an arithmetic number, because the mean of its divisors is an integer number (1617660).

Almost surely, 2^6464543 is an apocalyptic number.

6464543 is a deficient number, since it is larger than the sum of its proper divisors (6097).

6464543 is a wasteful number, since it uses less digits than its factorization.

6464543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096.

The product of its digits is 34560, while the sum is 32.

The square root of 6464543 is about 2542.5465580791. The cubic root of 6464543 is about 186.2855962473.

It can be divided in two parts, 6464 and 543, that added together give a palindrome (7007).

The spelling of 6464543 in words is "six million, four hundred sixty-four thousand, five hundred forty-three".