6781122 has 12 divisors (see below), whose sum is σ = 14692470. Its totient is φ = 2260368.

The previous prime is 6781121. The next prime is 6781127. The reversal of 6781122 is 2211876.

6781122 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5659641 + 1121481 = 2379^2 + 1059^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6781121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188347 + ... + 188382.

Almost surely, 2^6781122 is an apocalyptic number.

6781122 is an abundant number, since it is smaller than the sum of its proper divisors (7911348).

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

6781122 is a wasteful number, since it uses less digits than its factorization.

6781122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376737 (or 376734 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 6781122 is about 2604.0587550975. The cubic root of 6781122 is about 189.2781660283.

Adding to 6781122 its reverse (2211876), we get a palindrome (8992998).

It can be divided in two parts, 6781 and 122, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 6781122 in words is "six million, seven hundred eighty-one thousand, one hundred twenty-two".