6778630 has 16 divisors (see below), whose sum is σ = 12844080. Its totient is φ = 2568672.

The previous prime is 6778621. The next prime is 6778637. The reversal of 6778630 is 368776.

It is a self number, because there is not a number n which added to its sum of digits gives 6778630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17649 + ... + 18028.

It is an arithmetic number, because the mean of its divisors is an integer number (802755).

Almost surely, 2^6778630 is an apocalyptic number.

6778630 is a deficient number, since it is larger than the sum of its proper divisors (6065450).

6778630 is a wasteful number, since it uses less digits than its factorization.

6778630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35703.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 6778630 is about 2603.5802273024. The cubic root of 6778630 is about 189.2549771922.

The spelling of 6778630 in words is "six million, seven hundred seventy-eight thousand, six hundred thirty".