6654 has 8 divisors (see below), whose sum is σ = 13320. Its totient is φ = 2216.

The previous prime is 6653. The next prime is 6659. The reversal of 6654 is 4566.

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

6654 is an admirable number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6654.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 6654.

It is not an unprimeable number, because it can be changed into a prime (6653) 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, 549 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (1665).

2⁶⁶⁵⁴ is an apocalyptic number.

6654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6660).

6654 is a wasteful number, since it uses less digits than its factorization.

6654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its digits is 720, while the sum is 21.

The square root of 6654 is about 81.5720540381. The cubic root of 6654 is about 18.8087932307.

It can be divided in two parts, 66 and 54, that added together give a triangular number (120 = T₁₅).

The spelling of 6654 in words is "six thousand, six hundred fifty-four".