613686341 has 2 divisors, whose sum is σ = 613686342. Its totient is φ = 613686340.

The previous prime is 613686259. The next prime is 613686343. The reversal of 613686341 is 143686316.

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., 523036900 + 90649441 = 22870^2 + 9521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613686341 is a prime.

It is a super-2 number, since 2×613686341² = 753221850259936562, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 613686343, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 613686295 and 613686304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613686343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306843170 + 306843171.

It is an arithmetic number, because the mean of its divisors is an integer number (306843171).

Almost surely, 2^613686341 is an apocalyptic number.

It is an amenable number.

613686341 is a deficient number, since it is larger than the sum of its proper divisors (1).

613686341 is an equidigital number, since it uses as much as digits as its factorization.

613686341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 613686341 is about 24772.6934546892. The cubic root of 613686341 is about 849.7975716338.

The spelling of 613686341 in words is "six hundred thirteen million, six hundred eighty-six thousand, three hundred forty-one".