682847657 has 2 divisors, whose sum is σ = 682847658. Its totient is φ = 682847656.

The previous prime is 682847609. The next prime is 682847689. The reversal of 682847657 is 756748286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 682829161 + 18496 = 26131^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 682847657 - 2¹⁴ = 682831273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 682847599 and 682847608.

It is not a weakly prime, because it can be changed into another prime (682847057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341423828 + 341423829.

It is an arithmetic number, because the mean of its divisors is an integer number (341423829).

Almost surely, 2^682847657 is an apocalyptic number.

It is an amenable number.

682847657 is a deficient number, since it is larger than the sum of its proper divisors (1).

682847657 is an equidigital number, since it uses as much as digits as its factorization.

682847657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 53.

The square root of 682847657 is about 26131.3539067535. The cubic root of 682847657 is about 880.5917408650.

The spelling of 682847657 in words is "six hundred eighty-two million, eight hundred forty-seven thousand, six hundred fifty-seven".