6781677 has 16 divisors (see below), whose sum is σ = 10555392. Its totient is φ = 3792240.

The previous prime is 6781667. The next prime is 6781699. The reversal of 6781677 is 7761876.

6781677 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6781677 - 2⁴ = 6781661 is a prime.

It is a super-2 number, since 2×6781677² = 91982285864658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6781667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2449 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (659712).

Almost surely, 2^6781677 is an apocalyptic number.

It is an amenable number.

6781677 is a deficient number, since it is larger than the sum of its proper divisors (3773715).

6781677 is a wasteful number, since it uses less digits than its factorization.

6781677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928.

The product of its digits is 98784, while the sum is 42.

The square root of 6781677 is about 2604.1653173330. The cubic root of 6781677 is about 189.2833297026.

The spelling of 6781677 in words is "six million, seven hundred eighty-one thousand, six hundred seventy-seven".