6744816 has 80 divisors (see below), whose sum is σ = 20866720. Its totient is φ = 2073600.

The previous prime is 6744781. The next prime is 6744817. The reversal of 6744816 is 6184476.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6744817) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5016 + ... + 6216.

It is an arithmetic number, because the mean of its divisors is an integer number (260834).

Almost surely, 2^6744816 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 6744816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10433360).

6744816 is an abundant number, since it is smaller than the sum of its proper divisors (14121904).

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

6744816 is a wasteful number, since it uses less digits than its factorization.

6744816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1219 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 6744816 is about 2597.0783584636. The cubic root of 6744816 is about 188.9397641251.

The spelling of 6744816 in words is "six million, seven hundred forty-four thousand, eight hundred sixteen".