6680677 has 4 divisors (see below), whose sum is σ = 7073676. Its totient is φ = 6287680.

The previous prime is 6680657. The next prime is 6680689. The reversal of 6680677 is 7760866.

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 2461761 + 4218916 = 1569^2 + 2054^2 .

It is a cyclic number.

It is not a de Polignac number, because 6680677 - 2⁷ = 6680549 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680657) 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, 196474 + ... + 196507.

It is an arithmetic number, because the mean of its divisors is an integer number (1768419).

Almost surely, 2^6680677 is an apocalyptic number.

It is an amenable number.

6680677 is a deficient number, since it is larger than the sum of its proper divisors (392999).

6680677 is a wasteful number, since it uses less digits than its factorization.

6680677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392998.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 6680677 is about 2584.7005629279. The cubic root of 6680677 is about 188.3389558106.

The spelling of 6680677 in words is "six million, six hundred eighty thousand, six hundred seventy-seven".