6779644 has 12 divisors (see below), whose sum is σ = 11884264. Its totient is φ = 3384144.

The previous prime is 6779639. The next prime is 6779653. The reversal of 6779644 is 4469776.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6779644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2419 + ... + 4405.

Almost surely, 2^6779644 is an apocalyptic number.

It is an amenable number.

6779644 is a deficient number, since it is larger than the sum of its proper divisors (5104620).

6779644 is a wasteful number, since it uses less digits than its factorization.

6779644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844 (or 2842 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 6779644 is about 2603.7749518728. The cubic root of 6779644 is about 189.2644134636.

The spelling of 6779644 in words is "six million, seven hundred seventy-nine thousand, six hundred forty-four".