680010917 has 2 divisors, whose sum is σ = 680010918. Its totient is φ = 680010916.

The previous prime is 680010911. The next prime is 680010923. The reversal of 680010917 is 719010086.

It is a balanced prime because it is at equal distance from previous prime (680010911) and next prime (680010923).

It can be written as a sum of positive squares in only one way, i.e., 511166881 + 168844036 = 22609^2 + 12994^2 .

It is a cyclic number.

It is not a de Polignac number, because 680010917 - 2²⁶ = 612902053 is a prime.

It is a Chen prime.

It is equal to p_35270690 and since 680010917 and 35270690 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680010911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340005458 + 340005459.

It is an arithmetic number, because the mean of its divisors is an integer number (340005459).

Almost surely, 2^680010917 is an apocalyptic number.

It is an amenable number.

680010917 is a deficient number, since it is larger than the sum of its proper divisors (1).

680010917 is an equidigital number, since it uses as much as digits as its factorization.

680010917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 680010917 is about 26077.0189438900. The cubic root of 680010917 is about 879.3706403074.

The spelling of 680010917 in words is "six hundred eighty million, ten thousand, nine hundred seventeen".