613841 has 2 divisors, whose sum is σ = 613842. Its totient is φ = 613840.

The previous prime is 613829. The next prime is 613849. The reversal of 613841 is 148316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 229441 = 620^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 613841 - 2¹⁰ = 612817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (613849) 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, 306920 + 306921.

It is an arithmetic number, because the mean of its divisors is an integer number (306921).

2⁶¹³⁸⁴¹ is an apocalyptic number.

It is an amenable number.

613841 is a deficient number, since it is larger than the sum of its proper divisors (1).

613841 is an equidigital number, since it uses as much as digits as its factorization.

613841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 613841 is about 783.4800571808. The cubic root of 613841 is about 84.9868953269.

The spelling of 613841 in words is "six hundred thirteen thousand, eight hundred forty-one".