6534 has 24 divisors (see below), whose sum is σ = 15960. Its totient is φ = 1980.

The previous prime is 6529. The next prime is 6547. The reversal of 6534 is 4356.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 3 and base 9.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 589 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (665).

2⁶⁵³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7980).

6534 is an abundant number, since it is smaller than the sum of its proper divisors (9426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6534 is a wasteful number, since it uses less digits than its factorization.

6534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33 (or 16 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 6534 is about 80.8331615118. The cubic root of 6534 is about 18.6950390531.

6534 divided by its sum of digits (18) gives a palindrome (363).

It can be divided in two parts, 65 and 34, that added together give a palindrome (99).

The spelling of 6534 in words is "six thousand, five hundred thirty-four".