682136657 has 4 divisors (see below), whose sum is σ = 682369380. Its totient is φ = 681903936.

The previous prime is 682136647. The next prime is 682136669. The reversal of 682136657 is 756631286.

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 215619856 + 466516801 = 14684^2 + 21599^2 .

It is a cyclic number.

It is not a de Polignac number, because 682136657 - 2⁸ = 682136401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682136627) 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 3 ways as a sum of consecutive naturals, for example, 111908 + ... + 117845.

It is an arithmetic number, because the mean of its divisors is an integer number (170592345).

Almost surely, 2^682136657 is an apocalyptic number.

It is an amenable number.

682136657 is a deficient number, since it is larger than the sum of its proper divisors (232723).

682136657 is a wasteful number, since it uses less digits than its factorization.

682136657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232722.

The product of its digits is 362880, while the sum is 44.

The square root of 682136657 is about 26117.7460168369. The cubic root of 682136657 is about 880.2860025101.

The spelling of 682136657 in words is "six hundred eighty-two million, one hundred thirty-six thousand, six hundred fifty-seven".