6677780 has 24 divisors (see below), whose sum is σ = 14093352. Its totient is φ = 2657792.

The previous prime is 6677777. The next prime is 6677789. The reversal of 6677780 is 877766.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 5924356 = 868^2 + 2434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6677789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3944 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (587223).

Almost surely, 2^6677780 is an apocalyptic number.

It is an amenable number.

6677780 is an abundant number, since it is smaller than the sum of its proper divisors (7415572).

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

6677780 is a wasteful number, since it uses less digits than its factorization.

6677780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 6677780 is about 2584.1400890819. The cubic root of 6677780 is about 188.3117281888.

The spelling of 6677780 in words is "six million, six hundred seventy-seven thousand, seven hundred eighty".