6774644 has 6 divisors (see below), whose sum is σ = 11855634. Its totient is φ = 3387320.

The previous prime is 6774643. The next prime is 6774671. The reversal of 6774644 is 4464776.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 169744 = 2570^2 + 412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6774598 and 6774607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6774643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 846827 + ... + 846834.

It is an arithmetic number, because the mean of its divisors is an integer number (1975939).

Almost surely, 2^6774644 is an apocalyptic number.

It is an amenable number.

6774644 is a deficient number, since it is larger than the sum of its proper divisors (5080990).

6774644 is a wasteful number, since it uses less digits than its factorization.

6774644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693665 (or 1693663 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 6774644 is about 2602.8146303569. The cubic root of 6774644 is about 189.2178744025.

The spelling of 6774644 in words is "six million, seven hundred seventy-four thousand, six hundred forty-four".