6777013 has 4 divisors (see below), whose sum is σ = 6942348. Its totient is φ = 6611680.

The previous prime is 6777011. The next prime is 6777041. The reversal of 6777013 is 3107776.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2748964 + 4028049 = 1658^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 6777013 - 2¹ = 6777011 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6777011) 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 3 ways as a sum of consecutive naturals, for example, 82606 + ... + 82687.

It is an arithmetic number, because the mean of its divisors is an integer number (1735587).

Almost surely, 2^6777013 is an apocalyptic number.

It is an amenable number.

6777013 is a deficient number, since it is larger than the sum of its proper divisors (165335).

6777013 is a wasteful number, since it uses less digits than its factorization.

6777013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165334.

The product of its (nonzero) digits is 6174, while the sum is 31.

The square root of 6777013 is about 2603.2696748512. The cubic root of 6777013 is about 189.2399274631.

The spelling of 6777013 in words is "six million, seven hundred seventy-seven thousand, thirteen".