682656677 has 4 divisors (see below), whose sum is σ = 689415756. Its totient is φ = 675897600.

The previous prime is 682656671. The next prime is 682656701. The reversal of 682656677 is 776656286.

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 645617281 + 37039396 = 25409^2 + 6086^2 .

It is a cyclic number.

It is not a de Polignac number, because 682656677 - 2⁶ = 682656613 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 (682656671) 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, 3379388 + ... + 3379589.

It is an arithmetic number, because the mean of its divisors is an integer number (172353939).

Almost surely, 2^682656677 is an apocalyptic number.

It is an amenable number.

682656677 is a deficient number, since it is larger than the sum of its proper divisors (6759079).

682656677 is a wasteful number, since it uses less digits than its factorization.

682656677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759078.

The product of its digits is 5080320, while the sum is 53.

The square root of 682656677 is about 26127.6994203470. The cubic root of 682656677 is about 880.5096380759.

The spelling of 682656677 in words is "six hundred eighty-two million, six hundred fifty-six thousand, six hundred seventy-seven".