6776345 has 4 divisors (see below), whose sum is σ = 8131620. Its totient is φ = 5421072.

The previous prime is 6776333. The next prime is 6776347. The reversal of 6776345 is 5436776.

6776345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 2679769 = 2024^2 + 1637^2 .

It is a cyclic number.

It is not a de Polignac number, because 6776345 - 2⁶ = 6776281 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6776299 and 6776308.

It is not an unprimeable number, because it can be changed into a prime (6776347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677630 + ... + 677639.

It is an arithmetic number, because the mean of its divisors is an integer number (2032905).

Almost surely, 2^6776345 is an apocalyptic number.

It is an amenable number.

6776345 is a deficient number, since it is larger than the sum of its proper divisors (1355275).

6776345 is a wasteful number, since it uses less digits than its factorization.

6776345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355274.

The product of its digits is 105840, while the sum is 38.

The square root of 6776345 is about 2603.1413714971. The cubic root of 6776345 is about 189.2337095602.

It can be divided in two parts, 67 and 76345, that multiplied together give a palindrome (5115115).

The spelling of 6776345 in words is "six million, seven hundred seventy-six thousand, three hundred forty-five".