6654816 has 72 divisors (see below), whose sum is σ = 21634704. Its totient is φ = 1900800.

The previous prime is 6654779. The next prime is 6654821. The reversal of 6654816 is 6184566.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 14.

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, 366 + ... + 3666.

It is an arithmetic number, because the mean of its divisors is an integer number (300482).

Almost surely, 2^6654816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6654816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10817352).

6654816 is an abundant number, since it is smaller than the sum of its proper divisors (14979888).

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

6654816 is a wasteful number, since it uses less digits than its factorization.

6654816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3313 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 6654816 is about 2579.6930049911. The cubic root of 6654816 is about 188.0956205891.

It can be divided in two parts, 66548 and 16, that added together give a square (66564 = 258²).

The spelling of 6654816 in words is "six million, six hundred fifty-four thousand, eight hundred sixteen".