6779965 has 8 divisors (see below), whose sum is σ = 8334648. Its totient is φ = 5291520.

The previous prime is 6779953. The next prime is 6779987. The reversal of 6779965 is 5699776.

It can be written as a sum of positive squares in 4 ways, for example, as 4356 + 6775609 = 66^2 + 2603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6779965 - 2⁷ = 6779837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16332 + ... + 16741.

It is an arithmetic number, because the mean of its divisors is an integer number (1041831).

Almost surely, 2^6779965 is an apocalyptic number.

It is an amenable number.

6779965 is a deficient number, since it is larger than the sum of its proper divisors (1554683).

6779965 is a wasteful number, since it uses less digits than its factorization.

6779965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33119.

The product of its digits is 714420, while the sum is 49.

The square root of 6779965 is about 2603.8365924151. The cubic root of 6779965 is about 189.2674004896.

It can be divided in two parts, 6779 and 965, that added together give a square (7744 = 88²).

The spelling of 6779965 in words is "six million, seven hundred seventy-nine thousand, nine hundred sixty-five".