682717457 has 2 divisors, whose sum is σ = 682717458. Its totient is φ = 682717456.

The previous prime is 682717421. The next prime is 682717517. The reversal of 682717457 is 754717286.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659667856 + 23049601 = 25684^2 + 4801^2 .

It is a cyclic number.

It is not a de Polignac number, because 682717457 - 2²⁴ = 665940241 is a prime.

It is a super-2 number, since 2×682717457² = 932206252185093698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (682717417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341358728 + 341358729.

It is an arithmetic number, because the mean of its divisors is an integer number (341358729).

Almost surely, 2^682717457 is an apocalyptic number.

It is an amenable number.

682717457 is a deficient number, since it is larger than the sum of its proper divisors (1).

682717457 is an equidigital number, since it uses as much as digits as its factorization.

682717457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 47.

The square root of 682717457 is about 26128.8625278637. The cubic root of 682717457 is about 880.5357692139.

The spelling of 682717457 in words is "six hundred eighty-two million, seven hundred seventeen thousand, four hundred fifty-seven".