6771965 has 4 divisors (see below), whose sum is σ = 8126364. Its totient is φ = 5417568.

The previous prime is 6771953. The next prime is 6771971. The reversal of 6771965 is 5691776.

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 2859481 + 3912484 = 1691^2 + 1978^2 .

It is a cyclic number.

It is not a de Polignac number, because 6771965 - 2¹⁰ = 6770941 is a prime.

It is a super-2 number, since 2×6771965² = 91719019922450, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 677192 + ... + 677201.

It is an arithmetic number, because the mean of its divisors is an integer number (2031591).

Almost surely, 2^6771965 is an apocalyptic number.

It is an amenable number.

6771965 is a deficient number, since it is larger than the sum of its proper divisors (1354399).

6771965 is a wasteful number, since it uses less digits than its factorization.

6771965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354398.

The product of its digits is 79380, while the sum is 41.

The square root of 6771965 is about 2602.2999442801. The cubic root of 6771965 is about 189.1929293515.

The spelling of 6771965 in words is "six million, seven hundred seventy-one thousand, nine hundred sixty-five".