6677765 has 8 divisors (see below), whose sum is σ = 8110368. Its totient is φ = 5277520.

The previous prime is 6677761. The next prime is 6677767. The reversal of 6677765 is 5677766.

It is a happy number.

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

It is not a de Polignac number, because 6677765 - 2² = 6677761 is a prime.

It is a super-3 number, since 3×6677765³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6677761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7631 + ... + 8460.

It is an arithmetic number, because the mean of its divisors is an integer number (1013796).

Almost surely, 2^6677765 is an apocalyptic number.

It is an amenable number.

6677765 is a deficient number, since it is larger than the sum of its proper divisors (1432603).

6677765 is a wasteful number, since it uses less digits than its factorization.

6677765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16179.

The product of its digits is 370440, while the sum is 44.

The square root of 6677765 is about 2584.1371867608. The cubic root of 6677765 is about 188.3115871899.

Subtracting from 6677765 its reverse (5677766), we obtain a palindrome (999999).

The spelling of 6677765 in words is "six million, six hundred seventy-seven thousand, seven hundred sixty-five".