6779705 has 4 divisors (see below), whose sum is σ = 8135652. Its totient is φ = 5423760.

The previous prime is 6779693. The next prime is 6779711. The reversal of 6779705 is 5079776.

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 2601769 + 4177936 = 1613^2 + 2044^2 .

It is not a de Polignac number, because 6779705 - 2⁸ = 6779449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677966 + ... + 677975.

It is an arithmetic number, because the mean of its divisors is an integer number (2033913).

Almost surely, 2^6779705 is an apocalyptic number.

It is an amenable number.

6779705 is a deficient number, since it is larger than the sum of its proper divisors (1355947).

6779705 is a wasteful number, since it uses less digits than its factorization.

6779705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355946.

The product of its (nonzero) digits is 92610, while the sum is 41.

The square root of 6779705 is about 2603.7866656084. The cubic root of 6779705 is about 189.2649810989.

The spelling of 6779705 in words is "six million, seven hundred seventy-nine thousand, seven hundred five".