6534663 has 8 divisors (see below), whose sum is σ = 8860800. Its totient is φ = 4282488.

The previous prime is 6534631. The next prime is 6534679. The reversal of 6534663 is 3664356.

It is a happy number.

6534663 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 6534663 - 2⁵ = 6534631 is a prime.

6534663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530663) 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, 18283 + ... + 18636.

It is an arithmetic number, because the mean of its divisors is an integer number (1107600).

Almost surely, 2^6534663 is an apocalyptic number.

6534663 is a deficient number, since it is larger than the sum of its proper divisors (2326137).

6534663 is a wasteful number, since it uses less digits than its factorization.

6534663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36981.

The product of its digits is 38880, while the sum is 33.

The square root of 6534663 is about 2556.2986914678. The cubic root of 6534663 is about 186.9567135551.

The spelling of 6534663 in words is "six million, five hundred thirty-four thousand, six hundred sixty-three".