6777677 has 4 divisors (see below), whose sum is σ = 7011420. Its totient is φ = 6543936.

The previous prime is 6777637. The next prime is 6777691. The reversal of 6777677 is 7767776.

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 2979076 + 3798601 = 1726^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 6777677 - 2⁶ = 6777613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6777607) 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, 116828 + ... + 116885.

It is an arithmetic number, because the mean of its divisors is an integer number (1752855).

Almost surely, 2^6777677 is an apocalyptic number.

It is an amenable number.

6777677 is a deficient number, since it is larger than the sum of its proper divisors (233743).

6777677 is a wasteful number, since it uses less digits than its factorization.

6777677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233742.

The product of its digits is 605052, while the sum is 47.

The square root of 6777677 is about 2603.3972036553. The cubic root of 6777677 is about 189.2461077281.

Subtracting 6777677 from its reverse (7767776), we obtain a palindrome (990099).

The spelling of 6777677 in words is "six million, seven hundred seventy-seven thousand, six hundred seventy-seven".