6775776 has 72 divisors (see below), whose sum is σ = 22027824. Its totient is φ = 1935360.

The previous prime is 6775733. The next prime is 6775781.

It is a happy number.

6775776 is a `hidden beast` number, since 6 + 77 + 577 + 6 = 666.

6775776 is nontrivially palindromic in base 10.

6775776 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×6775776² = 91822280804352, which contains 22 as substring.

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, 336 + ... + 3696.

It is an arithmetic number, because the mean of its divisors is an integer number (305942).

Almost surely, 2^6775776 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 6775776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11013912).

6775776 is an abundant number, since it is smaller than the sum of its proper divisors (15252048).

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

6775776 is a wasteful number, since it uses less digits than its factorization.

6775776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384 (or 3373 counting only the distinct ones).

The product of its digits is 432180, while the sum is 45.

The square root of 6775776 is about 2603.0320781735. The cubic root of 6775776 is about 189.2284128507.

The spelling of 6775776 in words is "six million, seven hundred seventy-five thousand, seven hundred seventy-six".