686456341 has 2 divisors, whose sum is σ = 686456342. Its totient is φ = 686456340.

The previous prime is 686456249. The next prime is 686456357. The reversal of 686456341 is 143654686.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 664092900 + 22363441 = 25770^2 + 4729^2 .

It is a cyclic number.

It is not a de Polignac number, because 686456341 - 2⁹ = 686455829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (686406341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343228170 + 343228171.

It is an arithmetic number, because the mean of its divisors is an integer number (343228171).

Almost surely, 2^686456341 is an apocalyptic number.

It is an amenable number.

686456341 is a deficient number, since it is larger than the sum of its proper divisors (1).

686456341 is an equidigital number, since it uses as much as digits as its factorization.

686456341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The square root of 686456341 is about 26200.3118492891. The cubic root of 686456341 is about 882.1402540382.

The spelling of 686456341 in words is "six hundred eighty-six million, four hundred fifty-six thousand, three hundred forty-one".