682905617 has 2 divisors, whose sum is σ = 682905618. Its totient is φ = 682905616.

The previous prime is 682905593. The next prime is 682905631. The reversal of 682905617 is 716509286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511845376 + 171060241 = 22624^2 + 13079^2 .

It is a cyclic number.

It is not a de Polignac number, because 682905617 - 2⁸ = 682905361 is a prime.

It is not a weakly prime, because it can be changed into another prime (682905677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341452808 + 341452809.

It is an arithmetic number, because the mean of its divisors is an integer number (341452809).

Almost surely, 2^682905617 is an apocalyptic number.

It is an amenable number.

682905617 is a deficient number, since it is larger than the sum of its proper divisors (1).

682905617 is an equidigital number, since it uses as much as digits as its factorization.

682905617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 682905617 is about 26132.4628957930. The cubic root of 682905617 is about 880.6166549889.

The spelling of 682905617 in words is "six hundred eighty-two million, nine hundred five thousand, six hundred seventeen".