6456543 has 8 divisors (see below), whose sum is σ = 8625456. Its totient is φ = 4296000.

The previous prime is 6456539. The next prime is 6456551. The reversal of 6456543 is 3456546.

6456543 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6456543 - 2² = 6456539 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (1078182).

Almost surely, 2^6456543 is an apocalyptic number.

6456543 is a deficient number, since it is larger than the sum of its proper divisors (2168913).

6456543 is a wasteful number, since it uses less digits than its factorization.

6456543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185.

The product of its digits is 43200, while the sum is 33.

The square root of 6456543 is about 2540.9728451914. The cubic root of 6456543 is about 186.2087204885.

The spelling of 6456543 in words is "six million, four hundred fifty-six thousand, five hundred forty-three".