6616944 has 120 divisors (see below), whose sum is σ = 20556720. Its totient is φ = 2036736.

The previous prime is 6616931. The next prime is 6616991. The reversal of 6616944 is 4496166.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 6616899 and 6616908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124822 + ... + 124874.

It is an arithmetic number, because the mean of its divisors is an integer number (171306).

Almost surely, 2^6616944 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 6616944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10278360).

6616944 is an abundant number, since it is smaller than the sum of its proper divisors (13939776).

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

6616944 is a wasteful number, since it uses less digits than its factorization.

6616944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 75 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 6616944 is about 2572.3421234354. The cubic root of 6616944 is about 187.7381294419.

The spelling of 6616944 in words is "six million, six hundred sixteen thousand, nine hundred forty-four".