682770817 has 2 divisors, whose sum is σ = 682770818. Its totient is φ = 682770816.

The previous prime is 682770799. The next prime is 682770839. The reversal of 682770817 is 718077286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624950001 + 57820816 = 24999^2 + 7604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-682770817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (682770017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341385408 + 341385409.

It is an arithmetic number, because the mean of its divisors is an integer number (341385409).

Almost surely, 2^682770817 is an apocalyptic number.

It is an amenable number.

682770817 is a deficient number, since it is larger than the sum of its proper divisors (1).

682770817 is an equidigital number, since it uses as much as digits as its factorization.

682770817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 46.

The square root of 682770817 is about 26129.8836009654. The cubic root of 682770817 is about 880.5587089938.

The spelling of 682770817 in words is "six hundred eighty-two million, seven hundred seventy thousand, eight hundred seventeen".