6778266 has 16 divisors (see below), whose sum is σ = 14789088. Its totient is φ = 2054000.

The previous prime is 6778249. The next prime is 6778267. The reversal of 6778266 is 6628776.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6778267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51285 + ... + 51416.

It is an arithmetic number, because the mean of its divisors is an integer number (924318).

Almost surely, 2^6778266 is an apocalyptic number.

6778266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6778266 is an abundant number, since it is smaller than the sum of its proper divisors (8010822).

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

6778266 is a wasteful number, since it uses less digits than its factorization.

6778266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102717.

The product of its digits is 169344, while the sum is 42.

The square root of 6778266 is about 2603.5103226221. The cubic root of 6778266 is about 189.2515895831.

The spelling of 6778266 in words is "six million, seven hundred seventy-eight thousand, two hundred sixty-six".