6770779 has 4 divisors (see below), whose sum is σ = 6803080. Its totient is φ = 6738480.

The previous prime is 6770767. The next prime is 6770789. The reversal of 6770779 is 9770776.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6770779 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6770719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15834 + ... + 16255.

It is an arithmetic number, because the mean of its divisors is an integer number (1700770).

Almost surely, 2^6770779 is an apocalyptic number.

6770779 is a deficient number, since it is larger than the sum of its proper divisors (32301).

6770779 is a wasteful number, since it uses less digits than its factorization.

6770779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32300.

The product of its (nonzero) digits is 129654, while the sum is 43.

The square root of 6770779 is about 2602.0720589561. The cubic root of 6770779 is about 189.1818840141.

The spelling of 6770779 in words is "six million, seven hundred seventy thousand, seven hundred seventy-nine".