6777140 has 12 divisors (see below), whose sum is σ = 14232036. Its totient is φ = 2710848.

The previous prime is 6777137. The next prime is 6777149. The reversal of 6777140 is 417776.

It can be written as a sum of positive squares in 2 ways, for example, as 5071504 + 1705636 = 2252^2 + 1306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6777097 and 6777106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6777149) 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, 169409 + ... + 169448.

It is an arithmetic number, because the mean of its divisors is an integer number (1186003).

Almost surely, 2^6777140 is an apocalyptic number.

It is an amenable number.

6777140 is an abundant number, since it is smaller than the sum of its proper divisors (7454896).

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

6777140 is a wasteful number, since it uses less digits than its factorization.

6777140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338866 (or 338864 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 6777140 is about 2603.2940671388. The cubic root of 6777140 is about 189.2411095631.

The spelling of 6777140 in words is "six million, seven hundred seventy-seven thousand, one hundred forty".